Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4496474 | Asphalt emulsions comprising N-aliphatic-1,3-diaminopentane emulsifier and process | — | 1985-01-29 |
| 4419140 | Alkoxylated diquaternary ammonium compounds | James M. Richmond, Gary A. Bernard | 1983-12-06 |
| 4313895 | Alkoxylated diquaternary ammonium compounds | James M. Richmond, Gary A. Bernard | 1982-02-02 |
| 4237064 | Process for preparing quaternary ammonium compositions | — | 1980-12-02 |