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Creation Date 

1. Before 1986  (26)
2. 1986 To 1994  (17)
3. 1995 To 2004  (25)
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5. After 2016  (5,089)
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Resource Type 

1. Patents  (5,175)
2. Articles  (1)
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Subject 

1. Conversion Or Distribution Of Electric Power  (2,484)
2. Generation  (2,484)
3. Transporting  (2,106)
4. Performing Operations  (2,106)
5. Physics  (1,977)
6. Vehicles In General  (1,783)
7. Basic Electric Elements  (1,553)
8. Electric Communication Technique  (1,505)
9. Electrodynamic Brake Systems For Vehicles, In General  (1,287)
10. Electric Equipment Or Propulsion Of Electrically-Propelledvehicles  (1,287)
11. Magnetic Suspension Or Levitation For Vehicles  (1,287)
12. Circuit Arrangements Or Systems For Supplying Or Distributingelectric Power  (1,203)
13. Systems For Storing Electric Energy  (1,203)
14. Control Or Regulation Thereof  (985)
15. Conversion Of Dc Or Ac Input Power Into Surge Outputpower  (985)
16. Processes Or Means, E.G. Batteries, For The Direct Conversionof Chemical Into Electrical Energy  (670)
17. Calculating  (586)
18. Computing  (586)
19. Counting  (586)
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Databases 

1. esp@cenet  (5,175)
2. DOAJ Directory of Open Access Journals  (1)
3. Coronavirus Research Database  (1)
4. ROAD: Directory of Open Access Scholarly Resources  (1)
5. ProQuest Central  (1)
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Language 

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2. French  (1,521)
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