SL. NO. DESCRIPTION FILE
1 Govt. of India's Patents Website
2 Patent Facilitating Centre
3 Patent information centres (PATLIB)
4 Patent Lens - A worldwide, open-access, free full-text patent informatics resource.
5 Russian Patent Office
6 Singaporean Patent Office
7 Australian Patent Office
8 French Patent Office
9 German Patent Office
10 Indian Patent design and trademark office
11 Indian Patent Information Retrieval System (IPIRS)
12 Intellectual Property Office of the People's Republic of China (SIPO)
13 Internet sites for patent search
14 Irish Patent Office
15 Thai
16 UK Intellectual Property Office
17 United States
18 World Intellectual Property Organization (WIPO)