Refine My Results

Creation Date 

1. Before 1960  (8,699)
2. 1960 To 1975  (30,159)
3. 1976 To 1991  (107,651)
4. 1992 To 2008  (265,704)
5. After 2008  (441,217)
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New Records 

1. New From Last Week  (535)
2. New From Last Month  (19,040)
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Resource Type 

1. Patents  (853,905)
2. Articles  (9)
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Subject 

1. Performing Operations  (853,905)
2. Vehicles In General  (212,213)
3. Lighting  (166,711)
4. Weapons  (166,711)
5. Blasting  (166,711)
6. Heating  (166,711)
7. Mechanical Engineering  (166,711)
8. Physical Or Chemical Processes Or Apparatus In General  (128,000)
9. Conveying  (106,253)
10. Handling Thin Or Filamentary Material  (106,252)
11. Storing  (106,252)
12. Packing  (106,252)
13. Electricity  (92,408)
14. Separation  (90,811)
15. Engineering Elements And Units  (85,322)
16. Thermal Insulation In General  (85,322)
17. General Measures For Producing And Maintaining Effectivefunctioning Of Machines Or Installations  (85,322)
18. Physics  (78,661)
19. Human Necessities  (74,728)
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Databases 

1. esp@cenet  (853,905)
2. ProQuest Central  (6)
3. Education Resources Information Center (ERIC)  (1)
4. GFMER Free Medical Journals  (1)
5. IOPscience (Open Access)  (1)
6. DOAJ Directory of Open Access Journals  (1)
7. IOP Publishing Free Content  (1)
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Language 

1. English  (722,983)
2. French  (173,539)
3. German  (167,042)
4. Chinese  (107,323)
5. Korean  (44,357)
6. Japanese  (36,059)
7. Spanish  (20,442)
8. Russian  (14,292)
9. Portuguese  (8,590)
10. Italian  (8,365)
11. Swedish  (4,375)
12. Danish  (3,348)
13. Dutch  (2,380)
14. Norwegian  (2,378)
15. Polish  (2,343)
16. Finnish  (2,059)
17. Ukrainian  (1,617)
18. Czech  (734)
19. Hungarian  (586)
20. Turkish  (464)
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Journal Title 

1. 7th International Conference On Pumps And Fans  (1)
2. Advances In Mechatronics And Control Engineering Ii, Pts 1-3  (1)
3. Applied Mechanics And Materials  (2)
4. Chemical And Petroleum Engineering  (2)
5. Civil Engineering  (1)
6. Civil Engineering : Magazine Of The South African Institution Of Civil Engineering  (1)
7. International Journal On Transportation And Urban Development  (1)
8. Iop Conference Series: Materials Science And Engineering  (1)
9. Iop Conference Series. Materials Science And Engineering  (1)
10. Mechanical Engineering And Instrumentation  (1)
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