The subject of the invention is a glass-, ceramic- or vitroceramic-based substrate (1) provided on at least part of at least one of its faces with a coating (3) with a photocatalytic property containing at least partially crystalline titanium oxide. ...http://www.google.fr/patents/US20020071956?utm_source=gb-gplus-shareBrevet US20020071956 - Substrate with a photocatalytic coating
