Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4335219 | Process for reacting isocyanates in the presence of quaternary ammonium zwitterions | George J. Pomranky, Donald L. Schmidt | 1982-06-15 |
DC
Donald H. Clarke
Overall (1982): #69,034 of 81,411Top 85%
1
Patents 1982