Refine My Results

Creation Date 

1. Before 1960  (886)
2. 1960 To 1975  (1,916)
3. 1976 To 1991  (7,638)
4. 1992 To 2008  (50,734)
5. After 2008  (176,586)
6. More options 

New Records 

1. New From Last Month  (6,602)
2. More options 

Subject 

1. Transporting  (57,293)
2. Performing Operations  (57,293)
3. Physics  (49,006)
4. Chemistry  (47,541)
5. Metallurgy  (47,541)
6. Human Necessities  (36,214)
7. Calculating  (29,875)
8. Computing  (29,875)
9. Counting  (29,875)
10. Electricity  (26,088)
11. Lighting  (24,113)
12. Weapons  (24,113)
13. Blasting  (24,113)
14. Heating  (24,113)
15. Mechanical Engineering  (24,113)
16. Fixed Constructions  (21,199)
17. Physical Or Chemical Processes Or Apparatus In General  (14,453)
18. Hygiene  (13,021)
19. Medical Or Veterinary Science  (13,021)
20. Measuring  (11,408)
21. More options 

Databases 

1. esp@cenet  (220,899)
2. USPTO Issued Patents  (9,844)
3. USPTO Published Applications  (7,015)
4. Fraunhofer-ePrints  (6)
5. More options 

Language 

1. English  (224,864)
2. Chinese  (112,508)
3. French  (25,759)
4. German  (13,331)
5. Korean  (4,851)
6. Spanish  (2,107)
7. Japanese  (1,611)
8. Portuguese  (1,518)
9. Russian  (1,351)
10. Italian  (463)
11. Danish  (426)
12. Polish  (370)
13. Swedish  (359)
14. Ukrainian  (330)
15. Norwegian  (268)
16. Dutch  (257)
17. Finnish  (229)
18. Hebrew  (111)
19. Hungarian  (105)
20. Czech  (95)
21. More options