Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H179 | Polybutylene | George B. Klingensmith | 1986-12-02 |
| 4536537 | Rubberless high impact polypropylene | G. Bruce Klingensmith, Richard O. Whitehead | 1985-08-20 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H179 | Polybutylene | George B. Klingensmith | 1986-12-02 |
| 4536537 | Rubberless high impact polypropylene | G. Bruce Klingensmith, Richard O. Whitehead | 1985-08-20 |