Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11498884 | System for resource recovery from poultry processing wastewater | Yuanchun Xu, Guichun Zhang | 2022-11-15 |
| 11485650 | System for recovering fat, oil and grease from wastewater | Yuanchun Xu, Guichun Zhang | 2022-11-01 |
| 11214504 | Bio-DAF system for domestic and industrial wastewater treatment | Yuanchun Xu, Guichun Zhang | 2022-01-04 |
| 8632685 | Multistage DAF-advanced oxidation system | Yuanchun Xu, Alfred TYLER | 2014-01-21 |
| 6572817 | Ozone enhancing system | Donald L. Boyd | 2003-06-03 |
| 6251287 | Apparatus and method for treating liquids | Donald L. Boyd | 2001-06-26 |
| 5795442 | Sealing device for a twin wire dewatering apparatus | Donald L. Boyd | 1998-08-18 |