Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880858 | Water absorbing polymers | Peter Flesher, Malcolm Skinner, John B. Clarke, David Marshall, Malcolm Hawe | 1989-11-14 |
| 4876047 | Process for producing sulphonic acid | Gerald P. Benn, Peter Flesher | 1989-10-24 |
| 4861539 | Process of making water-absorbent, water-insoluble, cross linked fiber or film | Adrian S. Allen, Peter Flesher | 1989-08-29 |
| 4859720 | Process and compositions for sizing paper | Peter Flesher, John Langley, Norma Rosier | 1989-08-22 |
| 4835206 | Water soluble polymeric compositions | John Langley, Adrian Swinburne Allen | 1989-05-30 |
| 4820645 | Testing polyelectrolytes | John R. Field, Peter Flesher | 1989-04-11 |
| 4820872 | Process for hydrolyzing nitriles | Peter Flesher, Gerald P. Benn | 1989-04-11 |