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Creation Date 

1. Before 1964  (52)
2. 1964 To 1978  (116)
3. 1979 To 1992  (332)
4. 1993 To 2007  (3,097)
5. After 2007  (59,278)
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New Records 

1. New From Last Month  (2,478)
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Subject 

1. Semiconductor Devices  (24,734)
2. Electric Solid State Devices Not Otherwise Provided For  (24,734)
3. Processes Or Means, E.G. Batteries, For The Direct Conversionof Chemical Into Electrical Energy  (11,828)
4. Line Connectors  (9,010)
5. Current Collectors  (9,010)
6. Physics  (8,122)
7. Transporting  (8,062)
8. Performing Operations  (8,062)
9. Electric Techniques Not Otherwise Provided For  (5,494)
10. Conversion Or Distribution Of Electric Power  (5,086)
11. Generation  (5,086)
12. Emergency Protective Devices  (4,067)
13. Selectors  (4,067)
14. Electric Switches  (4,067)
15. Relays  (4,067)
16. Magnets  (3,833)
17. Inductances  (3,833)
18. Selection Of Materials For Their Magnetic Properties  (3,833)
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Language 

1. English  (43,895)
2. Japanese  (36,580)
3. Chinese  (25,087)
4. French  (9,677)
5. German  (280)
6. Korean  (66)
7. Spanish  (31)
8. Italian  (16)
9. Swedish  (13)
10. Portuguese  (12)
11. Finnish  (12)
12. Norwegian  (11)
13. Russian  (8)
14. Danish  (8)
15. Polish  (3)
16. Dutch  (3)
17. Slovenian  (2)
18. Czech  (1)
19. Croatian  (1)
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