Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6475395 | Liquid treatment process with in-plant pressure monitoring of submerged diffusers | Lloyd Ewing, David T. Redmon | 2002-11-05 |
| 6200468 | Aeration system apparatus with source of in situ cleaning agent and pressure monitoring connection for submerged diffuser | Lloyd Ewing, David T. Redmon | 2001-03-13 |
| RE33177 | In place gas cleaning of diffusion elements | David T. Redmon, Lloyd Ewing | 1990-03-06 |
| 4889620 | In place gas cleaning of diffusion elements | David T. Redmon, Lloyd Ewing | 1989-12-26 |
| 4288394 | Sewage aeration system | Lloyd Ewing, David T. Redmon, Paul M. Thayer, William H. Roche | 1981-09-08 |