Refine My Results

Creation Date 

1. Before 1991  (27,409)
2. 1991 To 1993  (49,506)
3. 1994 To 1996  (57,551)
4. 1997 To 2000  (93,277)
5. After 2000  (131,205)
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Subject 

1. Chemistry  (129,543)
2. Metallurgy  (129,543)
3. Lighting  (119,734)
4. Weapons  (119,734)
5. Blasting  (119,734)
6. Heating  (119,734)
7. Mechanical Engineering  (119,734)
8. Climate Change Mitigation Technologies In The Production Orprocessing Of Goods  (106,907)
9. Transporting  (105,039)
10. Performing Operations  (105,039)
11. Climate Change Mitigation Technologies Related Totransportation  (94,493)
12. Hot-Gas Or Combustion-Product Engine Plants  (66,001)
13. Combustion Engines  (66,001)
14. Climate Change Mitigation Technologies Related To Wastewatertreatment Or Waste Management  (63,699)
15. Electricity  (62,763)
16. Physics  (50,622)
17. More options 

Language 

1. English  (318,966)
2. French  (60,123)
3. German  (58,248)
4. Russian  (8,338)
5. Korean  (7,713)
6. Chinese  (4,691)
7. Spanish  (4,357)
8. Swedish  (3,001)
9. Portuguese  (2,577)
10. Japanese  (2,506)
11. Finnish  (1,976)
12. Dutch  (1,096)
13. Norwegian  (1,014)
14. Danish  (707)
15. Czech  (680)
16. Italian  (590)
17. Romanian  (497)
18. Indonesian  (213)
19. Polish  (201)
20. Turkish  (155)
21. More options