Refine My Results

Creation Date 

1. Before 1959  (17,879)
2. 1959 To 1973  (30,458)
3. 1974 To 1988  (64,354)
4. 1989 To 2004  (159,004)
5. After 2004  (446,598)
6. More options 

Subject 

1. Basic Electric Elements  (468,500)
2. Technologies Or Applications For Mitigation Or Adaptation Againstclimate Change  (401,795)
3. Technical Subjects Covered By Former Uspc  (339,293)
4. Technical Subjects Covered By Former Us Classification  (228,851)
5. Semiconductor Devices  (225,727)
6. Electric Solid State Devices Not Otherwise Provided For  (225,727)
7. Transporting  (150,411)
8. Performing Operations  (150,411)
9. Conversion Or Distribution Of Electric Power  (146,018)
10. Generation  (146,018)
11. Technical Subjects Covered By Former Uspc Cross-Reference Artcollections [xracs] And Digests  (130,611)
12. Climate Change Mitigation Technologies In The Production Orprocessing Of Goods  (121,850)
13. Electric Techniques Not Otherwise Provided For  (121,369)
14. Metallurgy  (118,785)
15. Chemistry  (118,785)
16. Physics  (115,376)
17. More options 

Language 

1. English  (640,150)
2. Chinese  (123,112)
3. French  (109,540)
4. German  (83,502)
5. Korean  (37,019)
6. Japanese  (25,577)
7. Spanish  (4,390)
8. Russian  (4,216)
9. Portuguese  (2,496)
10. Swedish  (2,127)
11. Dutch  (1,613)
12. Italian  (1,458)
13. Danish  (798)
14. Finnish  (765)
15. Polish  (440)
16. Norwegian  (358)
17. Romanian  (249)
18. Ukrainian  (235)
19. Czech  (97)
20. Hungarian  (69)
21. More options