Ewing; Lloyd
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ewing; Lloyd.The latest application filed is for "liquid treatment process with in-plant pressure monitoring of submerged diffusers".
- Ewing; Lloyd - Milwaukee WI
- Ewing; Lloyd - Bayside WI
- Ewing; Lloyd - Bay Side WI
| Patent | Date |
|---|---|
| Liquid treatment process with in-plant pressure monitoring of submerged diffusers Grant 6,475,395 - Schmit , et al. November 5, 2 | 2002-11-05 |
| Apparatus for in place gas cleaning of diffusion elements Grant 5,328,601 - Schmidt , et al. July 12, 1 | 1994-07-12 |
| In place gas cleaning of diffusion elements Grant RE33,177 - Schmit , et al. March 6, 1 | 1990-03-06 |
| In place gas cleaning of diffusion elements Grant 4,889,620 - Schmit , et al. December 26, 1 | 1989-12-26 |
| Diffusion element with boundary zone treatment Grant 4,288,395 - Ewing , et al. * September 8, 1 | 1981-09-08 |
| Sewage aeration system Grant 4,288,394 - Ewing , et al. September 8, 1 | 1981-09-08 |
| Diffusion element with boundary zone treatment Grant 4,261,932 - Ewing , et al. April 14, 1 | 1981-04-14 |
| Microscreen method and apparatus Grant 4,198,299 - Ewing , et al. April 15, 1 | 1980-04-15 |
| Phosphorus removal from waste water Grant 4,029,575 - Bykowski , et al. June 14, 1 | 1977-06-14 |
| Conformable thin-wall shear-resistant coupling and pipe assembly Grant 4,023,835 - Ewing , et al. May 17, 1 | 1977-05-17 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.
| 