Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7820062 | Tertiary filter | — | 2010-10-26 |
| 7678284 | Tertiary filter | — | 2010-03-16 |
| 7537689 | Tertiary filter | — | 2009-05-26 |
| 7276155 | Waste treatment apparatus with integral membrane apparatus | — | 2007-10-02 |
| 6613229 | Waste treatment method and apparatus with denitrification chamber | — | 2003-09-02 |
| 6572774 | Waste treatment method and apparatus with integral clarifier | — | 2003-06-03 |
| D452295 | Plate for a wastewater treatment plant | — | 2001-12-18 |
| 4805157 | Multi-layered polymer hydrophone array | — | 1989-02-14 |
| 4737939 | Composite transducer | — | 1988-04-12 |