Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5977330 | Crosslinked N-substituted chitosan derivatives | Dieter Lohmann | 1999-11-02 |
| 5708152 | N-substituted chitosan derivatives in a process for their preparation | Dieter Lohmann | 1998-01-13 |
| 5084539 | Unsaturated polymers of heterocyclic olefins | William J. Feast, David Byran Harrison, Alan F. Gerrard | 1992-01-28 |
| 4973727 | Method for preparation of metal salts of methyl phosphonic acids | James Gainer | 1990-11-27 |
| 4963631 | Polymers | — | 1990-10-16 |
| RE31343 | Piperidine derivatives | Brian Holt | 1983-08-09 |
| RE31342 | Piperidyl carboxylates | Brian Holt | 1983-08-09 |
| 4333841 | Dithiophosphate lubricant additives | Andreas Schmidt, Rudolf Kirchmayr | 1982-06-08 |
| 4276224 | Anthraquinone sulphonamide compounds and preparation | Emyr Phillips | 1981-06-30 |
| 4251493 | Gas purification process | Emyr Phillips | 1981-02-17 |
| 4248976 | Flame-resistant polymer compositions | Brian G. Clubley, Boyce I. D. Davis, Thomas G. Hyde, Frank Lamb | 1981-02-03 |
| 4207224 | Plastics composition | Thomas G. Hyde, Frank Lamb, Brian G. Clubley, Boyce I. D. Davis | 1980-06-10 |