Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8163175 | Method and apparatus for treating lime slurry for grit removal | Michael Quici | 2012-04-24 |
| 8133401 | Method and apparatus for treating lime slurry for grit removal | Michael Quici | 2012-03-13 |
| 7416673 | Method and apparatus for treating lime slurry for grit removal | Michael Quici | 2008-08-26 |
| 5851404 | Process and apparatus for liquid sludge stabilization | Richard W. Christy | 1998-12-22 |
| 5783073 | Process and apparatus for liquid sludge stabilization | Richard W. Christy | 1998-07-21 |
| 5681481 | Process and apparatus for liquid sludge stabilization | Richard W. Christy | 1997-10-28 |
| 5618442 | Process for treatment of sewage sludge | — | 1997-04-08 |
| 5554279 | Apparatus for treatment of sewage sludge | — | 1996-09-10 |
| 5433844 | Apparatus for pathogen reduction in waste | — | 1995-07-18 |
| 5405536 | Process and apparatus for pathogen reduction in waste | — | 1995-04-11 |
| 5401402 | Process and apparatus for treating sewage sludge | Richard W. Christy | 1995-03-28 |
| 5346616 | Apparatus for pathogen reduction in waste | Robert William Christy | 1994-09-13 |
| 5229011 | Process for pathogen reduction in waste | Robert William Christy | 1993-07-20 |
| 5186840 | Process for treating sewage sludge | Richard W. Christy | 1993-02-16 |
| 5013458 | Process and apparatus for pathogen reduction in waste | Robert William Christy | 1991-05-07 |