Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7669348 | Apparatus, method and system for treating sewage sludge | Robert Van Bramer, Michael Quici | 2010-03-02 |
| 5851404 | Process and apparatus for liquid sludge stabilization | Paul G. Christy | 1998-12-22 |
| 5783073 | Process and apparatus for liquid sludge stabilization | Paul G. Christy | 1998-07-21 |
| 5681481 | Process and apparatus for liquid sludge stabilization | Paul G. Christy | 1997-10-28 |
| 5401402 | Process and apparatus for treating sewage sludge | Paul G. Christy | 1995-03-28 |
| 5186840 | Process for treating sewage sludge | Paul G. Christy | 1993-02-16 |