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Creation Date 

1. Before 1960  (29,221)
2. 1960 To 1975  (95,196)
3. 1976 To 1991  (346,083)
4. 1992 To 2008  (1,041,631)
5. After 2008  (2,146,851)
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New Records 

1. New From Last Month  (72,514)
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Subject 

1. Lighting  (888,454)
2. Weapons  (888,454)
3. Blasting  (888,454)
4. Heating  (888,454)
5. Mechanical Engineering  (888,454)
6. Electricity  (875,475)
7. Transporting  (853,209)
8. Performing Operations  (853,209)
9. Physics  (572,790)
10. Human Necessities  (515,992)
11. Basic Electric Elements  (491,805)
12. Engineering Elements And Units  (342,021)
13. Thermal Insulation In General  (342,021)
14. General Measures For Producing And Maintaining Effectivefunctioning Of Machines Or Installations  (342,021)
15. Hygiene  (256,041)
16. Medical Or Veterinary Science  (256,041)
17. Vehicles In General  (212,013)
18. Measuring  (208,457)
19. Testing  (208,457)
20. Fixed Constructions  (202,589)
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Databases 

1. esp@cenet  (3,180,550)
2. USPTO Published Applications  (267,063)
3. USPTO Issued Patents  (213,036)
4. Fraunhofer-ePrints  (213)
5. UniSA Research Outputs Repository  (1)
6. PolyU Institutional Research Archive  (1)
7. SHAREOK Repository  (1)
8. Calhoun: The NPS Institutional Archive  (1)
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Language 

1. English  (3,209,138)
2. French  (638,062)
3. German  (571,857)
4. Chinese  (480,848)
5. Korean  (157,080)
6. Japanese  (153,599)
7. Spanish  (73,287)
8. Russian  (48,074)
9. Portuguese  (27,269)
10. Italian  (24,998)
11. Swedish  (12,159)
12. Danish  (11,989)
13. Norwegian  (9,340)
14. Polish  (7,981)
15. Dutch  (7,919)
16. Finnish  (6,255)
17. Ukrainian  (4,444)
18. Hebrew  (2,901)
19. Hungarian  (2,154)
20. Czech  (2,127)
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