Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9273439 | Method and apparatus for ensuring a minimum bypass flow from a hydropower diversion box | James C. Perkins | 2016-03-01 |
| 8252175 | Apparatus for separating fish from debris and allowing water passage | — | 2012-08-28 |
| 7805890 | Rain and storm water filtration systems | Steven E. Esmond, Larry Quinn | 2010-10-05 |
| 7584577 | Rain and storm water filtration systems | Steven E. Esmond, Larry Quinn | 2009-09-08 |
| 7300590 | Method and apparatus for separating oil and debris from water run-off | Steve E. Esmond, Larry Quinn | 2007-11-27 |
| 7258785 | Apparatus for separating oil and debris from water run-off | Steve E. Esmond, Larry Quinn | 2007-08-21 |
| 6953529 | Apparatus and method of particulate removal from liquids | — | 2005-10-11 |
| 6705049 | Rain and storm water filtration systems | Steven E. Esmond, Larry Quinn | 2004-03-16 |
| 5791291 | Method and apparatus for cleaning fish screens | James J. Strong | 1998-08-11 |