Patents per Year
Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7284670 | Sedimentation removal assembly for flow-through sedimentary tank | — | 2007-10-23 |
| 6830690 | Two-stage high synthesis activated sludge system with intermediate bio-solids removal | — | 2004-12-14 |
| 5611927 | System for removing nutrients from wastewater | — | 1997-03-18 |
| 5490934 | Method of biological denitrification | — | 1996-02-13 |
| 5421383 | Slide rail system for aeration diffusers and mixers | — | 1995-06-06 |
| 5035795 | Modular clarifier with integral flocculator | — | 1991-07-30 |
| 4643836 | Radial flow filter having air fluidizing backwash means | — | 1987-02-17 |
| 4494595 | Temperature-controllable heat valve | — | 1985-01-22 |
| 4474210 | Surge control weir structure for sewage treatment plants and the like | — | 1984-10-02 |