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Creation Date 

1. Before 1960  (7,914)
2. 1960 To 1975  (11,908)
3. 1976 To 1991  (41,625)
4. 1992 To 2008  (47,695)
5. After 2008  (118,966)
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New Records 

1. New From Last Week  (216)
2. New From Last Month  (5,749)
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Subject 

1. Fluid Heaters, E.G. Water Or Air Heaters, Having Heatgenerating Means, In General  (38,536)
2. Fixed Constructions  (21,507)
3. Air-Conditioning, Air-Humidification, Ventilation, Use Of Aircurrents For Screening  (21,152)
4. Heat Exchange In General  (18,704)
5. Electricity  (17,178)
6. Building  (16,402)
7. Technical Subjects Covered By Former Uspc Cross-Reference Art Collections [xracs] And Digests  (15,803)
8. General Tagging Of Cross-Sectional Technologies Spanning Over Several Sections Of The Ipc  (15,803)
9. General Tagging Of New Technological Developments  (15,803)
10. Technologies Or Applications For Mitigation Or Adaptation Againstclimate Change  (14,467)
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Language 

1. English  (181,140)
2. Chinese  (66,722)
3. German  (35,624)
4. French  (27,328)
5. Korean  (10,091)
6. Japanese  (3,599)
7. Spanish  (3,317)
8. Italian  (2,992)
9. Russian  (2,853)
10. Swedish  (2,236)
11. Polish  (1,510)
12. Danish  (1,427)
13. Finnish  (1,338)
14. Dutch  (1,263)
15. Portuguese  (767)
16. Norwegian  (622)
17. Czech  (524)
18. Ukrainian  (378)
19. Turkish  (377)
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