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Creation Date 

1. Before 1961  (78)
2. 1961 To 1976  (163)
3. 1977 To 1992  (254)
4. 1993 To 2009  (1,080)
5. After 2009  (5,146)
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New Records 

1. New From Last Week  (4)
2. New From Last Month  (297)
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Subject 

1. Physics  (4,751)
2. Calculating  (3,172)
3. Computing  (3,172)
4. Counting  (3,172)
5. Electric Digital Data Processing  (2,022)
6. Measuring  (1,370)
7. Testing  (1,370)
8. Electricity  (790)
9. Computer Systems Based On Specific Computational Models  (682)
10. Investigating Or Analysing Materials By Determining Theirchemical Or Physical Properties  (678)
11. Transporting  (426)
12. Performing Operations  (426)
13. Lighting  (412)
14. Weapons  (412)
15. Blasting  (412)
16. Heating  (412)
17. Mechanical Engineering  (412)
18. Electric Communication Technique  (383)
19. Human Necessities  (371)
20. Controlling  (354)
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Databases 

1. esp@cenet  (6,068)
2. USPTO Published Applications  (378)
3. USPTO Issued Patents  (280)
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Language 

1. English  (5,854)
2. Chinese  (3,381)
3. French  (578)
4. German  (329)
5. Korean  (233)
6. Japanese  (144)
7. Russian  (37)
8. Spanish  (27)
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