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Creation Date 

1. Before 1959  (1,174)
2. 1959 To 1973  (1,038)
3. 1974 To 1988  (6,327)
4. 1989 To 2004  (8,012)
5. After 2004  (38,171)
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Resource Type 

1. Patents  (54,804)
2. magazinearticle  (1)
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Subject 

1. Technical Subjects Covered By Former Uspc Cross-Reference Art Collections [xracs] And Digests  (54,804)
2. Weapons  (54,804)
3. Technologies Or Applications For Mitigation Or Adaptation Againstclimate Change  (54,804)
4. General Tagging Of Cross-Sectional Technologies Spanning Over Several Sections Of The Ipc  (54,804)
5. Heating  (54,804)
6. General Tagging Of New Technological Developments  (54,804)
7. Mechanical Engineering  (54,804)
8. Ventilating  (27,027)
9. Ranges  (27,027)
10. Manufacture Or Storage Of Ice  (14,809)
11. Liquefaction Solidification Of Gases  (14,809)
12. Refrigeration Or Cooling  (14,809)
13. Combined Heating And Refrigeration Systems  (14,809)
14. Heat Pump Systems  (14,809)
15. Heat-Pump Systems  (14,238)
16. Refrigeration Machines, Plants Or Systems  (14,238)
17. Domestic- Or Space-Heating Systems, E.G. Central Heatingsystems  (10,943)
18. Domestic Hot-Water Supply Systems  (10,943)
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Databases 

1. esp@cenet  (54,804)
2. ProQuest Central  (1)
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Language 

1. English  (48,844)
2. Chinese  (16,067)
3. French  (9,492)
4. German  (7,086)
5. Korean  (1,954)
6. Japanese  (1,260)
7. Russian  (648)
8. Spanish  (587)
9. Swedish  (335)
10. Portuguese  (222)
11. Italian  (188)
12. Danish  (183)
13. Dutch  (173)
14. Polish  (153)
15. Finnish  (106)
16. Romanian  (58)
17. Ukrainian  (54)
18. Norwegian  (35)
19. Czech  (19)
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