WO2004036426B1 - Web service security filter - Google Patents

Web service security filter

Info

Publication number
WO2004036426B1
WO2004036426B1 PCT/US2003/031262 US0331262W WO2004036426B1 WO 2004036426 B1 WO2004036426 B1 WO 2004036426B1 US 0331262 W US0331262 W US 0331262W WO 2004036426 B1 WO2004036426 B1 WO 2004036426B1
Authority
WO
WIPO (PCT)
Prior art keywords
pattern rules
incoming request
http
web service
log
Prior art date
Application number
PCT/US2003/031262
Other languages
French (fr)
Other versions
WO2004036426A1 (en
Inventor
Aleksey Sanin
Original Assignee
America Online Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by America Online Inc filed Critical America Online Inc
Priority to AU2003279109A priority Critical patent/AU2003279109A1/en
Publication of WO2004036426A1 publication Critical patent/WO2004036426A1/en
Publication of WO2004036426B1 publication Critical patent/WO2004036426B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
    • H04L63/0227—Filtering policies
    • H04L63/0263—Rule management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/16—Implementing security features at a particular protocol layer
    • H04L63/168—Implementing security features at a particular protocol layer above the transport layer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]

Abstract

The invention comprises a server-side plug in as a security filter that processes HTTP requests before any other Web service plug-ins or applications. Using a highly customizable set of pattern rules based on regular expressions, the security filter predictably intercepts all attacks of known patterns. The set of rules is updated whenever a new pattern of attack is discovered.

Claims

AMENDED CLAIMS[received by the International Bureau on 23April 2004 (23.04.04); claims 1, 6 and 12 replaced; original claims 2-5, 7-11 and 13-17unchanged (6 pages)]
1. In an HTTP based network, a security filter for shielding a Web service application from malicious HTTP requests, comprising:
a plurality of pattern rules categorized by object types, said plurality of pattern rules comprising patterns of known attacks;
means for parsing an incoming request into objects of said object types;
means for applying said pattern rules to said objects; and
means for taking actions on said incoming request when any substring in said objects matches any of said pattern rules in order to intercept said known attacks.
2. The security filter of Claim 1 , wherein said object types comprise:
path;
query;
body;
headers; and
cookie.
3. The security filter of Claim 1 , wherein lists of said pattern rules corresponding to object types are executed sequentially.
42
4. The security filter of Claims , wherein said actions comprise any of:
stop validating said incoming request and pass it to said Web service application;
log an error message and continue;
continue and ignore said matched substring for subsequent checks;
stop validating said incoming request, log an error message and redirect to a static error page; and
stop validating said incoming request, log an error message and return a given HTTP error code.
5. The security filter of Claim 1, wherein said pattern rules can be applied to any of:
plain text HTTP object; and
URL decoded data.
6. A method for protecting a Web service application from a malicious HTTP request, comprising the steps of:
parsing an incoming HTTP request into objects;
applying a predefined group of pattern rules to said objects, said predefined group of pattern rules comprising patterns of known attacks; and
43 taking an action when any substring included in said objects matches any of said pattern rules in order to intercept said known attacks.
7. The method of Claim 6, wherein said group pattern rules are categorized by object types, each object type corresponding to a list of pattern rules and said object types comprising:
path;
query;
body;
headers; and
cookie.
8. The method of Claim 6, wherein lists of said pattern rules corresponding to object types are executed sequentially.
9. The method of Claim 6, wherein said pattern rules can be applied to any of:
plain text HTTP object; and
URL decoded data.
10. The method of Claim 6, wherein said action comprises:
pass said incoming request to said Web service application; and
44 reject said incoming request.
11. The method of Claim 6, wherein said action comprises any of:
stop validating said incoming request and pass it to said Web service application;
log an error message and continue;
continue and ignore said matched substring for subsequent checks;
stop validating said incoming request, log an error message and redirect to a static error page; and
stop validating said incoming request, log an error message and return a given HTTP error code.
12. A computer readable storage medium containing a computer readable code for operating a computer system to perform a method for protecting a Web service' application from malicious HTTP requests, said method comprising the steps of:
parsing an incoming HTTP request into objects;
applying a predefined group of pattern rules to said objects, said predefined group of pattern rules comprising patterns of known attacks; and
taking an action when any substring included in said objects matches any of said pattern rules in order to intercept said known attacks.
13. The computer readable storage medium of Claim 12, wherein said group pattern rules are categorized by object types, each object type corresponding to a list of pattern rules and said object types comprising:
path;
query;
body;
headers; and
cookie.
14. The computer readable storage medium of Claim 12, wherein lists of said pattern rules corresponding to object types are executed sequentially.
15. The computer readable storage medium of Claim 12, wherein said pattern rules can be applied to any of:
plain text HTTP object; and
URL decoded data.
16. The computer readable storage medium of Claim 12, wherein said action comprises:
pass said incoming request to said Web service application; and
reject said incoming request.
46
17. The computer readable storage medium of Claim 12, wherein said action comprises any of:
stop validating said incoming request and pass it to said Web service application;
log an error message and continue;
continue and ignore said matched substring for subsequent checks;
stop validating said incoming request, log an error message and redirect to a static error page; and
stop validating said incoming request, log an error message and return a given HTTP error code.
47
PCT/US2003/031262 2002-10-15 2003-10-01 Web service security filter WO2004036426A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003279109A AU2003279109A1 (en) 2002-10-15 2003-10-01 Web service security filter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/272,225 2002-10-15
US10/272,225 US20040073811A1 (en) 2002-10-15 2002-10-15 Web service security filter

Publications (2)

Publication Number Publication Date
WO2004036426A1 WO2004036426A1 (en) 2004-04-29
WO2004036426B1 true WO2004036426B1 (en) 2004-07-08

Family

ID=32069244

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/031262 WO2004036426A1 (en) 2002-10-15 2003-10-01 Web service security filter

Country Status (3)

Country Link
US (1) US20040073811A1 (en)
AU (1) AU2003279109A1 (en)
WO (1) WO2004036426A1 (en)

Families Citing this family (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7613926B2 (en) * 1997-11-06 2009-11-03 Finjan Software, Ltd Method and system for protecting a computer and a network from hostile downloadables
US9219755B2 (en) 1996-11-08 2015-12-22 Finjan, Inc. Malicious mobile code runtime monitoring system and methods
US8079086B1 (en) 1997-11-06 2011-12-13 Finjan, Inc. Malicious mobile code runtime monitoring system and methods
US7058822B2 (en) 2000-03-30 2006-06-06 Finjan Software, Ltd. Malicious mobile code runtime monitoring system and methods
US8225408B2 (en) * 1997-11-06 2012-07-17 Finjan, Inc. Method and system for adaptive rule-based content scanners
US7975305B2 (en) * 1997-11-06 2011-07-05 Finjan, Inc. Method and system for adaptive rule-based content scanners for desktop computers
US6070604A (en) * 1998-08-07 2000-06-06 Carter; Mark C. Erectable shelter with collapsible central roof support
US7236940B2 (en) * 2001-05-16 2007-06-26 Perot Systems Corporation Method and system for assessing and planning business operations utilizing rule-based statistical modeling
US7831442B1 (en) 2001-05-16 2010-11-09 Perot Systems Corporation System and method for minimizing edits for medical insurance claims processing
US7822621B1 (en) 2001-05-16 2010-10-26 Perot Systems Corporation Method of and system for populating knowledge bases using rule based systems and object-oriented software
US7313531B2 (en) * 2001-11-29 2007-12-25 Perot Systems Corporation Method and system for quantitatively assessing project risk and effectiveness
KR20040080844A (en) * 2003-03-14 2004-09-20 주식회사 안철수연구소 Method to detect malicious scripts using static analysis
US20040260754A1 (en) * 2003-06-20 2004-12-23 Erik Olson Systems and methods for mitigating cross-site scripting
US8271774B1 (en) 2003-08-11 2012-09-18 Symantec Corporation Circumstantial blocking of incoming network traffic containing code
US9123077B2 (en) 2003-10-07 2015-09-01 Hospira, Inc. Medication management system
US8065161B2 (en) 2003-11-13 2011-11-22 Hospira, Inc. System for maintaining drug information and communicating with medication delivery devices
US7293023B1 (en) * 2004-03-04 2007-11-06 Sprint Communications Company L.P. Method for evaluating data in elements of a communications network
US11868421B1 (en) * 2004-07-23 2024-01-09 Ellis Robinson Giles System and method for evaluating hyperdocuments using a trained artificial neural network
CA2521563C (en) * 2004-09-28 2016-10-18 Layer 7 Technologies Inc. System and method for bridging identities in a service oriented archite cture
US7461339B2 (en) 2004-10-21 2008-12-02 Trend Micro, Inc. Controlling hostile electronic mail content
US8078740B2 (en) 2005-06-03 2011-12-13 Microsoft Corporation Running internet applications with low rights
US7599934B2 (en) * 2005-09-27 2009-10-06 Microsoft Corporation Server side filtering and sorting with field level security
US20070186282A1 (en) * 2006-02-06 2007-08-09 Microsoft Corporation Techniques for identifying and managing potentially harmful web traffic
GB0603888D0 (en) * 2006-02-27 2006-04-05 Univ Newcastle Phishing mitigation
CN101449553B (en) * 2006-05-31 2013-04-17 思杰系统有限公司 System and method determining character set codes for decoding request submission in the gateway
US8185737B2 (en) 2006-06-23 2012-05-22 Microsoft Corporation Communication across domains
US8230509B2 (en) * 2006-09-14 2012-07-24 Ca, Inc. System and method for using rules to protect against malware
EP2092470A2 (en) 2006-10-16 2009-08-26 Hospira, Inc. System and method for comparing and utilizing activity information and configuration information from mulitple device management systems
KR100862903B1 (en) 2007-05-15 2008-10-13 주식회사 나우콤 High speed detecting apparatus of protocol integrity and the detecting method thereof
US10019570B2 (en) 2007-06-14 2018-07-10 Microsoft Technology Licensing, Llc Protection and communication abstractions for web browsers
US20100058467A1 (en) * 2008-08-28 2010-03-04 International Business Machines Corporation Efficiency of active content filtering using cached ruleset metadata
US8271106B2 (en) 2009-04-17 2012-09-18 Hospira, Inc. System and method for configuring a rule set for medical event management and responses
US8769665B2 (en) * 2009-09-29 2014-07-01 Broadcom Corporation IP communication device as firewall between network and computer system
US8745729B2 (en) 2010-06-22 2014-06-03 Microsoft Corporation Preventing abuse of services through infrastructure incompatibility
US20120021770A1 (en) * 2010-07-21 2012-01-26 Naqvi Shamim A System and method for control and management of resources for consumers of information
US8627442B2 (en) * 2011-05-24 2014-01-07 International Business Machines Corporation Hierarchical rule development and binding for web application server firewall
US10025928B2 (en) 2011-10-03 2018-07-17 Webroot Inc. Proactive browser content analysis
ES2959510T3 (en) 2011-10-21 2024-02-26 Icu Medical Inc Medical device update system
US20130179552A1 (en) * 2012-01-09 2013-07-11 Ezshield, Inc. Computer Implemented Method, Computer System And Nontransitory Computer Readable Storage Medium For Matching URL With Web Site
FR2990819B1 (en) 2012-05-21 2014-05-16 Bee Ware METHOD AND DEVICE FOR SECURING EXCHANGE OF MESSAGES TRANSMITTED IN AN INTERCONNECTION NETWORK
AU2014225658B2 (en) 2013-03-06 2018-05-31 Icu Medical, Inc. Medical device communication method
JP6621748B2 (en) 2013-08-30 2019-12-18 アイシーユー・メディカル・インコーポレーテッド System and method for monitoring and managing a remote infusion regimen
US9662436B2 (en) 2013-09-20 2017-05-30 Icu Medical, Inc. Fail-safe drug infusion therapy system
US10311972B2 (en) 2013-11-11 2019-06-04 Icu Medical, Inc. Medical device system performance index
WO2015077320A1 (en) 2013-11-19 2015-05-28 Hospira, Inc. Infusion pump automation system and method
US9953163B2 (en) 2014-02-23 2018-04-24 Cyphort Inc. System and method for detection of malicious hypertext transfer protocol chains
US9961481B2 (en) * 2014-04-21 2018-05-01 Lg Electronics Inc. Method and apparatus for transmitting a HTTP data using bluetooth in wireless communication system
JP6853669B2 (en) 2014-04-30 2021-03-31 アイシーユー・メディカル・インコーポレーテッド Patient treatment system with conditional alert forwarding
US9724470B2 (en) 2014-06-16 2017-08-08 Icu Medical, Inc. System for monitoring and delivering medication to a patient and method of using the same to minimize the risks associated with automated therapy
US9539383B2 (en) 2014-09-15 2017-01-10 Hospira, Inc. System and method that matches delayed infusion auto-programs with manually entered infusion programs and analyzes differences therein
WO2016189417A1 (en) 2015-05-26 2016-12-01 Hospira, Inc. Infusion pump system and method with multiple drug library editor source capability
US10693901B1 (en) * 2015-10-28 2020-06-23 Jpmorgan Chase Bank, N.A. Techniques for application security
US10021204B2 (en) * 2016-07-12 2018-07-10 Ca, Inc. Test proxy between client applications and web services
EP3484541A4 (en) 2016-07-14 2020-03-25 ICU Medical, Inc. Multi-communication path selection and security system for a medical device
CN106060090A (en) * 2016-07-29 2016-10-26 广州市乐商软件科技有限公司 Website script attack prevention method and device
CN108023860B (en) * 2016-11-03 2021-01-26 中国电信股份有限公司 Web application protection method and system and Web application firewall
CN107528826A (en) * 2017-07-25 2017-12-29 北京长亭科技有限公司 Detection method and device, terminal device and the computer-readable storage medium of network attack
NZ771914A (en) 2018-07-17 2023-04-28 Icu Medical Inc Updating infusion pump drug libraries and operational software in a networked environment
EP3824383B1 (en) 2018-07-17 2023-10-11 ICU Medical, Inc. Systems and methods for facilitating clinical messaging in a network environment
US10950339B2 (en) 2018-07-17 2021-03-16 Icu Medical, Inc. Converting pump messages in new pump protocol to standardized dataset messages
US11139058B2 (en) 2018-07-17 2021-10-05 Icu Medical, Inc. Reducing file transfer between cloud environment and infusion pumps
AU2019309766A1 (en) 2018-07-26 2021-03-18 Icu Medical, Inc. Drug library management system
US10692595B2 (en) 2018-07-26 2020-06-23 Icu Medical, Inc. Drug library dynamic version management
US11375032B2 (en) 2018-12-20 2022-06-28 Ebay Inc. Traffic mirroring

Family Cites Families (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5959596A (en) * 1993-06-24 1999-09-28 Nintendo Co., Ltd. Airline-based video game and communications system
US5701301A (en) * 1993-06-28 1997-12-23 Bellsouth Corporation Mediation of open advanced intelligent network in SS7 protocol open access environment
US5835726A (en) * 1993-12-15 1998-11-10 Check Point Software Technologies Ltd. System for securing the flow of and selectively modifying packets in a computer network
US5613110A (en) * 1995-01-05 1997-03-18 International Business Machines Corporation Indexing method and apparatus facilitating a binary search of digital data
US6301350B1 (en) * 1995-06-30 2001-10-09 Qwest Communications International, Inc. System and method for call handling
DE69625652T2 (en) * 1995-08-18 2003-09-18 Ibm Event Management Services
US6161128A (en) * 1996-08-14 2000-12-12 Telcordia Technologies, Inc. Internet based service control system allows telecommunications subscriber modifies telecommunications services through an internet gateway
US6233318B1 (en) * 1996-11-05 2001-05-15 Comverse Network Systems, Inc. System for accessing multimedia mailboxes and messages over the internet and via telephone
US6335927B1 (en) * 1996-11-18 2002-01-01 Mci Communications Corporation System and method for providing requested quality of service in a hybrid network
US6073160A (en) * 1996-12-18 2000-06-06 Xerox Corporation Document communications controller
US5987611A (en) * 1996-12-31 1999-11-16 Zone Labs, Inc. System and methodology for managing internet access on a per application basis for client computers connected to the internet
US5805801A (en) * 1997-01-09 1998-09-08 International Business Machines Corporation System and method for detecting and preventing security
US6085224A (en) * 1997-03-11 2000-07-04 Intracept, Inc. Method and system for responding to hidden data and programs in a datastream
US5996011A (en) * 1997-03-25 1999-11-30 Unified Research Laboratories, Inc. System and method for filtering data received by a computer system
WO1999007077A2 (en) * 1997-07-31 1999-02-11 Stanford Syncom Inc. Means and method for a synchronous network communications system
US6199181B1 (en) * 1997-09-09 2001-03-06 Perfecto Technologies Ltd. Method and system for maintaining restricted operating environments for application programs or operating systems
US5999978A (en) * 1997-10-31 1999-12-07 Sun Microsystems, Inc. Distributed system and method for controlling access to network resources and event notifications
US6038563A (en) * 1997-10-31 2000-03-14 Sun Microsystems, Inc. System and method for restricting database access to managed object information using a permissions table that specifies access rights corresponding to user access rights to the managed objects
US6212511B1 (en) * 1997-10-31 2001-04-03 Sun Microsystems, Inc. Distributed system and method for providing SQL access to management information in a secure distributed network
US6366947B1 (en) * 1998-01-20 2002-04-02 Redmond Venture, Inc. System and method for accelerating network interaction
US6240464B1 (en) * 1998-02-04 2001-05-29 3Com Corporation Method and system for managing addresses for network host interfaces in a data-over-cable system
US6453419B1 (en) * 1998-03-18 2002-09-17 Secure Computing Corporation System and method for implementing a security policy
US6370147B1 (en) * 1998-04-23 2002-04-09 3Com Corporation Method for addressing of passive network hosts in a data-over-cable system
US6317838B1 (en) * 1998-04-29 2001-11-13 Bull S.A. Method and architecture to provide a secured remote access to private resources
US6311269B2 (en) * 1998-06-15 2001-10-30 Lockheed Martin Corporation Trusted services broker for web page fine-grained security labeling
US6400707B1 (en) * 1998-08-27 2002-06-04 Bell Atlantic Network Services, Inc. Real time firewall security
US6311278B1 (en) * 1998-09-09 2001-10-30 Sanctum Ltd. Method and system for extracting application protocol characteristics
US6324646B1 (en) * 1998-09-11 2001-11-27 International Business Machines Corporation Method and system for securing confidential data in a computer network
US6351773B1 (en) * 1998-12-21 2002-02-26 3Com Corporation Methods for restricting access of network devices to subscription services in a data-over-cable system
US6237033B1 (en) * 1999-01-13 2001-05-22 Pitney Bowes Inc. System for managing user-characterizing network protocol headers
WO2001065330A2 (en) * 2000-03-03 2001-09-07 Sanctum Ltd. System for determining web application vulnerabilities
US20020133603A1 (en) * 2001-03-13 2002-09-19 Fujitsu Limited Method of and apparatus for filtering access, and computer product
US20020133720A1 (en) * 2001-03-16 2002-09-19 Clickgarden Method for filtering the transmission of data on a computer network to Web domains
US20030188189A1 (en) * 2002-03-27 2003-10-02 Desai Anish P. Multi-level and multi-platform intrusion detection and response system
US7315541B1 (en) * 2002-04-03 2008-01-01 Cisco Technology, Inc. Methods and apparatus for routing a content request
US7039702B1 (en) * 2002-04-26 2006-05-02 Mcafee, Inc. Network analyzer engine system and method

Also Published As

Publication number Publication date
AU2003279109A1 (en) 2004-05-04
US20040073811A1 (en) 2004-04-15
WO2004036426A1 (en) 2004-04-29

Similar Documents

Publication Publication Date Title
WO2004036426B1 (en) Web service security filter
Wurzinger et al. SWAP: Mitigating XSS attacks using a reverse proxy
US7805513B2 (en) Access control list checking
US8051484B2 (en) Method and security system for indentifying and blocking web attacks by enforcing read-only parameters
US20090119769A1 (en) Cross-site scripting filter
CN102291390B (en) Method for defending against denial of service attack based on cloud computation platform
US8561188B1 (en) Command and control channel detection with query string signature
US20130312081A1 (en) Malicious code blocking system
CN106534114B (en) Malicious attack prevention system based on big data analysis
US8336092B2 (en) Communication control device and communication control system
EP1850236A1 (en) Communication control apparatus
CN106790007A (en) Web attack defending systems and its method based on XSS and CSRF
US20040030788A1 (en) Computer message validation system
KR102152338B1 (en) System and method for converting rule between NIDPS engines
CN103916379A (en) CC attack identification method and system based on high frequency statistics
Aldwairi et al. n‐Grams exclusion and inclusion filter for intrusion detection in Internet of Energy big data systems
Ahmad et al. Overview of phishing landscape and homographs in Arabic domain names
Jensen et al. The curse of namespaces in the domain of xml signature
Kozik et al. Patterns extraction method for anomaly detection in HTTP traffic
RU2314562C1 (en) Method for processing network traffic datagrams for delimiting access to informational and computing resources of computer networks
CN112311776B (en) System and method for preventing flooding attack of API gateway
CN112187806A (en) Defense method based on dynamic jump of webpage resource address
CA2596948A1 (en) Communication control device and communication control system
CN104079572B (en) It is a kind of based on the website protection method changed from client to server end character
Kshirsagar et al. HTTP flood attack detection using ontology

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
B Later publication of amended claims

Effective date: 20040423

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP