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Creation Date 

1. Before 1960  (376)
2. 1960 To 1975  (265)
3. 1976 To 1991  (785)
4. 1992 To 2008  (1,342)
5. After 2008  (2,062)
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New Records 

1. New From Last Week  (108)
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Subject 

1. Chemistry  (4,489)
2. Metallurgy  (4,489)
3. Wine  (4,448)
4. Microbiology  (4,448)
5. Biochemistry  (4,448)
6. Spirits  (4,448)
7. Vinegar  (4,448)
8. Mutation Or Genetic Engineering  (4,448)
9. Beer  (4,448)
10. Enzymology  (4,448)
11. Distillation Or Rectification Of Fermented Solutions  (4,239)
12. Denaturing Of, Or Denatured, Alcohol  (4,239)
13. Recovery Of By-Products  (4,239)
14. Human Necessities  (1,852)
15. Their Treatment, Not Covered By Other Classes  (1,648)
16. Foods Or Foodstuffs  (1,648)
17. Foods, Foodstuffs, Or Non-Alcoholic Beverages, Not Covered Bysubclasses A23b - A23j  (1,116)
18. Preservation Of Foods Or Foodstuffs, In General  (1,110)
19. Their Preparation Or Treatment, E.G. Cooking, Modification Ofnutritive Qualities, Physical Treatment  (1,106)
20. Performing Operations  (1,054)
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Language 

1. English  (3,735)
2. French  (969)
3. German  (551)
4. Russian  (382)
5. Spanish  (235)
6. Chinese  (221)
7. Portuguese  (213)
8. Italian  (79)
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