Primary Documents
Patents by Country
Austrian Patent Office
Australian Patent Office
Belgium Patent Office
British Patent Office
Canadian Patent Office
Dutch Patent Office
European Patent Office
French Patent Office
German Patent Office
German Patent Applications
Italian Patent Office
Japanese Patent Office
Russian/Soviet Patent Office
South African Patent Office
Spanish Patent Office
Swedish Patent Office
Switzerland Patent Office
United States Patent Office
0 - 2,499,999
2,800,000 - 4,059,648
2,500,000 - 2,599,999
4,060,000 - 4,499,999
2,600,000 - 2,799,999
4,500,000 - 5,242,643
World Intellectual Property Organization Patents