Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4416781 | Treatment of biologically-degradable waste | Martin Bailey, David A. Hines, John C. Ousby, by Johanna M. Roesler, executrix | 1983-11-22 |
| 4351730 | Treatment of biologically-degradable waste | Martin Bailey, David A. Hines, John C. Ousby | 1982-09-28 |
| 4278546 | Treatment of a liquid by circulation and gas contacting | — | 1981-07-14 |
| 4253949 | Sewage treatment-flotation apparatus | David A. Hines, Richard Thomas Jones | 1981-03-03 |
| 4230563 | Treatment of biologically-degradable waste | — | 1980-10-28 |
| 4183787 | Circulation of gas/liquid mixtures | David A. Hines, Frank P. Maslen, Richard Fawcett | 1980-01-15 |