Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5023267 | Microbiological control agent | Douglas D. Clarkson, Richard P. Clifford | 1991-06-11 |
| 4862832 | Dispenser for the application of active components | Helmut Metzner | 1989-09-05 |
| 4863616 | Microbiological control process | Douglas D. Clarkson, Richard P. Clifford | 1989-09-05 |
| 4351796 | Method for scale control | — | 1982-09-28 |
| 4265769 | Method of treating aqueous systems with phosphonoadipic acids | John G. Dingwall, Barry Cook | 1981-05-05 |
| 4251492 | Purification process | — | 1981-02-17 |
| 4239648 | Telomeric phosphorus corrosion inhibiting compositions | Norman Richardson | 1980-12-16 |
| 4208344 | Phosphonoadipic acid additives to aqueous systems | John G. Dingwall, Barry Cook | 1980-06-17 |
| 4192744 | Treatment of aqueous systems | David R. Clark, Michael A. Finan | 1980-03-11 |