1.Method for manufacture of chitosan derivatives. Kim, Dong Seong; Choi, Gi Hyeon; Choi, Dong Min. (Hyosung T & C Co., Ltd., S. Korea). Repub. Korean Kongkae Taeho Kongbo (2000), KR 2000045851 A 20000725 Application: KR 98-62445 19981230.
Patent No. Kind Date Application No. Date
KR 2000045851 A 20000725 KR 1998-62445 19981230
Priority Application
KR 1998-62445 19981230
2.Patent No. Kind Date Application No. Date
IN 178232 A1 19970315 IN 1989-DE1104 19891123
Priority Application
IN 1989-DE1104 19891123 |
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