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Creation Date 

1. Before 1958  (7,097,420)
2. 1958 To 1973  (5,666,485)
3. 1974 To 1989  (18,010,830)
4. 1990 To 2006  (30,240,754)
5. After 2006  (40,439,379)
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New Records 

1. New From Last Month  (134,526)
2. New From Last 3 Month  (1,627,552)
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Subject 

1. Transporting  (24,641,736)
2. Performing Operations  (24,641,736)
3. Physics  (23,006,581)
4. Electricity  (22,109,765)
5. Human Necessities  (19,159,526)
6. Chemistry  (16,940,379)
7. Metallurgy  (16,940,379)
8. Lighting  (12,475,649)
9. Weapons  (12,475,649)
10. Blasting  (12,475,649)
11. Heating  (12,475,649)
12. Mechanical Engineering  (12,475,649)
13. Hygiene  (9,959,407)
14. Medical Or Veterinary Science  (9,959,407)
15. Basic Electric Elements  (9,558,656)
16. Electric Communication Technique  (8,290,063)
17. Calculating  (7,330,717)
18. Computing  (7,330,717)
19. Counting  (7,330,717)
20. Measuring  (6,726,856)
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Databases 

1. esp@cenet  (102,901,407)
2. USPTO Issued Patents  (79,208)
3. USPTO Published Applications  (6,278)
4. Fraunhofer-ePrints  (16)
5. SWEPUB Freely available online  (9)
6. Hyper Article en Ligne (HAL) (Open Access)  (1)
7. Manchester University Research Explorer  (1)
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Language 

1. English  (85,737,710)
2. French  (17,588,136)
3. German  (15,848,142)
4. Korean  (6,201,301)
5. Spanish  (2,749,764)
6. Russian  (2,108,173)
7. Portuguese  (1,159,002)
8. Italian  (1,150,474)
9. Swedish  (529,858)
10. Danish  (515,451)
11. Finnish  (434,888)
12. Polish  (319,718)
13. Dutch  (310,016)
14. Norwegian  (301,026)
15. Ukrainian  (226,543)
16. Chinese  (177,841)
17. Hebrew  (132,268)
18. Czech  (103,372)
19. Turkish  (97,477)
20. Romanian  (94,930)
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