|
| US3947815 | 9 mai 1975 | 30 mars 1976 | | Automobile emergency-alerting system |
| US3987408 | 30 janv. 1973 | 19 oct. 1976 | TMX, Inc. | Vehicle anti-theft system |
| US3988713 | 5 mars 1975 | 26 oct. 1976 | Sundstrand Data Control, Inc. | Aircraft ground proximity warning instrument |
| US4019139 | 28 avr. 1975 | 19 avr. 1977 | | Interaction multi-station alarm system |
| US4055839 | 23 juin 1976 | 25 oct. 1977 | Locust Farms, Inc. | Foaling alarm |
| US4187494 | 4 nov. 1977 | 5 févr. 1980 | | Vehicle guidance device |
| US4253946 | 18 juin 1979 | 3 mars 1981 | | Cleaning attachment for grain augers |
| US4292630 | 22 mars 1979 | 29 sept. 1981 | Societe d'Etudes Techniques et Commerciales d'Automation | Device for the obtaining of an electric signal which is proportional to an amount of movement and therefore capable of detecting any movement or acceleration |
| US4300129 | 6 sept. 1978 | 10 nov. 1981 | | Silent wearable signalling device with tactile means to prevent false triggering |
| US4331953 | 26 déc. 1979 | 25 mai 1982 | The Boeing Company | Communication system for use in hazardous confined areas |
| US4523178 | 22 févr. 1982 | 11 juin 1985 | | Wireless alarm system in conjunction with at least one vehicle |
| US4557275 | 20 mai 1983 | 10 déc. 1985 | | Biofeedback system |
| US4754268 | 23 août 1985 | 28 juin 1988 | Mitsuboshi Belting Ltd. | Wireless mouse apparatus |
| US4800370 | 7 oct. 1985 | 24 janv. 1989 | I E Sensors, Inc. | Wetness detection system |
| US4833725 | 10 sept. 1987 | 23 mai 1989 | | Unintentional radio transmission detection system |
| US4906972 | 29 avr. 1987 | 6 mars 1990 | The Boeing Company | Communication system for hazardous areas |
| US4931772 | 14 nov. 1985 | 5 juin 1990 | The Heil Company | Safety monitor |
| US4978946 | 21 mars 1989 | 18 déc. 1990 | Talkie Tooter (Canada) Ltd. | Personal security communication system |
| US5036859 | 19 sept. 1988 | 6 août 1991 | Travis International, Inc. | Moisture detector and indicator |
| US5045839 | 8 mars 1990 | 3 sept. 1991 | Rand G. Ellis | Personnel monitoring man-down alarm and location system |
| US5258743 | 4 janv. 1993 | 2 nov. 1993 | Uniplex Corporation | Piezoelectric motion sensor |
| US5438320 | 9 avr. 1993 | 1 août 1995 | Figgie International Inc. | Personal alarm system |
| US5963130 | 6 juil. 1998 | 5 oct. 1999 | Zoltar Satellite Alarm Systems, Inc. | Self-locating remote monitoring systems |
| US6198390 | 3 juin 1999 | 6 mars 2001 | | Self-locating remote monitoring systems |
| US6552652 | 9 oct. 2001 | 22 avr. 2003 | Synergy Microsystems, Inc. | Rescue device |
| US6828908 | 6 févr. 2002 | 7 déc. 2004 | | Locator system with an implanted transponder having an organically-rechargeable battery |
| US8035560 | 20 nov. 2008 | 11 oct. 2011 | | System and apparatus for tracking a person or an animal |
| US8149112 | 25 juil. 2006 | 3 avr. 2012 | MOSAID Technologies Incorporated | Multi-hazard alarm system using selectable power-level transmission and localization |
