C12P 13/225 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

C12P 13/225

Full Title

Preparation of nitrogen-containing organic compounds > Alpha- or beta- amino acids > Tryptophan; Tyrosine; Phenylalanine; 3,4-Dihydroxyphenylalanine

This code exists only in CPC.

Diff view requires codes present in both systems.