Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5128473 | Nitrogen-heterocyclic compounds and quaternary salts thereof | Floyd E. Friedli | 1992-07-07 |
| 4263177 | Amine oxide foam stabilizers for alkyl benzene sulfonate foaming agents | Richard R. Egan | 1981-04-21 |