Patent classifications
C
CHEMISTRY; METALLURGY
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C12
BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
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C12P
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
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13/00
Preparation of nitrogen-containing organic compounds
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C12P13/04
Alpha- or beta- amino acids
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C12P13/22
Tryptophan; Tyrosine; Phenylalanine; 3,4-Dihydroxyphenylalanine
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