Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5033650 | Multiple barrel dispensing device | Laurence Colin, Edward R. Spehar | 1991-07-23 |
| 4969747 | Reverse flow dispensing mixer | Laurence Colin, Edward R. Spehar | 1990-11-13 |
| 4753536 | Dispensing mixer for the storage and mixing of separate materials | Edward R. Spehar, Laurence Colin | 1988-06-28 |