Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7264716 | Membrane filtration manifold system | Warren Thomas Johnson, Bruce Gregory Biltoft, David John Cox, Robert McMahon, David L. Wood, III +1 more | 2007-09-04 |
| D478913 | Manifold header | Warren Thomas Johnson, Robert McMahon, David John Cox, Leon Keith Ernst, Bruce Gregory Biltoft +1 more | 2003-08-26 |
| D462699 | Manifold header cap | Warren Thomas Johnson, Robert McMahon, David John Cox, Leon Keith Ernst, Bruce Gregory Biltoft +1 more | 2002-09-10 |
| 5910249 | Method and apparatus for recovering water from a sewer main | Clinton V. Kopp, Warren Johnson, Anthony James Day, Antony MacCormick, Tomasz Markiewicz +3 more | 1999-06-08 |