Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5589166 | Cross-linked quaternary ammonium derivatives of poly(N,N-dialkylallyl) ammonium polymers | Denis Pemberton, Graham Smith | 1996-12-31 |
| 5462730 | Cross-linked quaternary ammonium derivatives of poly(N, N-dialkylallyl) ammonium polymers | Denis Pemberton, Graham Smith | 1995-10-31 |