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Creation Date 

1. Before 1960  (8,083)
2. 1960 To 1975  (30,384)
3. 1976 To 1991  (116,625)
4. 1992 To 2008  (255,313)
5. After 2008  (480,682)
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New Records 

1. New From Last Month  (16,950)
2. New From Last 3 Month  (16,974)
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Resource Type 

1. Patents  (888,454)
2. Articles  (1,890)
3. magazinearticle  (960)
4. Reviews  (66)
5. Newspaper Articles  (58)
6. Conference Proceedings  (22)
7. Book Chapters  (19)
8. Books  (14)
9. Reports  (10)
10. Text Resources  (5)
11. References  (4)
12. Newsletter Articles  (3)
13. Thesises (postgraduate)  (2)
14. Web Resources  (1)
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Subject 

1. Heating  (888,502)
2. Mechanical Engineering  (888,462)
3. Weapons  (888,461)
4. Blasting  (888,455)
5. Engineering Elements And Units  (342,021)
6. Thermal Insulation In General  (342,021)
7. General Measures For Producing And Maintaining Effectivefunctioning Of Machines Or Installations  (342,021)
8. Transporting  (166,569)
9. Performing Operations  (166,569)
10. Positive Displacement Machines For Liquids  (132,417)
11. Pumps For Liquids Or Elastic Fluids  (132,417)
12. Hot-Gas Or Combustion-Product Engine Plants  (104,397)
13. Combustion Engines  (104,397)
14. Ventilating  (100,102)
15. Ranges  (100,102)
16. Technical Subjects Covered By Former Uspc Cross-Reference Art Collections [xracs] And Digests  (96,304)
17. General Tagging Of Cross-Sectional Technologies Spanning Over Several Sections Of The Ipc  (96,304)
18. General Tagging Of New Technological Developments  (96,304)
19. Engine Plants In General  (92,030)
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Databases 

1. esp@cenet  (888,454)
2. ProQuest Central  (2,736)
3. DOAJ Directory of Open Access Journals  (483)
4. ROAD: Directory of Open Access Scholarly Resources  (398)
5. GFMER Free Medical Journals  (295)
6. MEDLINE  (216)
7. PubMed Central  (185)
8. Freely Accessible Arts & Humanities Journals  (100)
9. IOP Publishing Free Content  (70)
10. IOPscience (Open Access)  (52)
11. Coronavirus Research Database  (40)
12. Springer Nature OA/Free Journals  (33)
13. ProQuest One Psychology  (33)
14. Ebook Central - Academic Complete  (31)
15. Freely Accessible Journals  (28)
16. HighWire Press (Free Journals)  (26)
17. Public Library of Science (PLoS)  (21)
18. Open Knowledge Repository  (21)
19. EDP Open  (19)
20. Wiley-Blackwell Open Access Titles  (17)
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Language 

1. English  (752,725)
2. German  (188,580)
3. French  (187,337)
4. Chinese  (117,134)
5. Korean  (45,070)
6. Japanese  (39,281)
7. Spanish  (17,984)
8. Russian  (15,653)
9. Italian  (8,660)
10. Portuguese  (8,096)
11. Swedish  (4,676)
12. Danish  (3,694)
13. Norwegian  (2,726)
14. Dutch  (2,706)
15. Polish  (2,392)
16. Finnish  (1,961)
17. Czech  (870)
18. Ukrainian  (547)
19. Turkish  (523)
20. Hungarian  (485)
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Journal Title 

1. Architectural Lighting  (45)
2. Buildings  (84)
3. Ec & M  (70)
4. Electrical Wholesaling  (77)
5. Energies  (45)
6. Fx  (42)
7. Journal Of Urban History  (105)
8. Lighting Design & Application  (178)
9. Projection, Lights & Staging News  (57)
10. Sustainability  (59)
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