Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877724 | Method and composition for hardening gelatin | Edgar E. Riecke, Kenneth G. Harbison, Derek D. Chapman | 1989-10-31 |
CC
Chung-Yuan Chen
Overall (1989): #126,841 of 140,708Top 95%
1
Patents 1989