Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9266757 | Chemical feeder | — | 2016-02-23 |
| 9260328 | Chemical feeder | Richard H. Ferguson | 2016-02-16 |
| 9260329 | Chemical feeder | — | 2016-02-16 |
| 8257748 | Calcium hypochlorite compositions | Robert B. Simmons | 2012-09-04 |
| 7923036 | Halogen-containing sanitizing composition | — | 2011-04-12 |
| 7857990 | Calcium hypochlorite composition | Timothy A. Okel, Erik A. Schoenman, Shantilal M. Mohnot, Patrick Ryan | 2010-12-28 |
| 7465412 | Calcium hypochlorite composition | Fred Abraham, Donald W. DuBois | 2008-12-16 |
| 7431863 | Calcium hypochlorite composition | — | 2008-10-07 |
| 7081232 | Chemical feeder | Gerard F. Dooley, Jr., Richard H. Ferguson, Frank Schiffman | 2006-07-25 |
| 6544487 | Chemical feeder | Richard H. Ferguson, Paul T. Rice | 2003-04-08 |
| 6517727 | Method of operating a chemical feeder | Richard H. Ferguson | 2003-02-11 |
| 6298871 | Chemical feeder | Richard H. Ferguson | 2001-10-09 |
| 6138703 | Chemical feeder | Richard H. Ferguson, Marilyn D. Higgins | 2000-10-31 |
| 5960808 | Method of controlling the amount of sanitizing agent in an aqueous medium | Richard H. Ferguson, Gerald E. Moore | 1999-10-05 |
| 5662795 | Swimming pool chemical dispenser | Paul T. Rice, Richard H. Ferguson | 1997-09-02 |
| 5567298 | Method of operating chlor-alkali cells | Donald W. DuBois, Bernard A. Maloney | 1996-10-22 |
| 5030403 | Method for making polymeric fibrils | Donald W. DuBois, Hou-Ching M. Yang | 1991-07-09 |
| 4636286 | Electro organic method | Norman R. DeLue | 1987-01-13 |
| 4584070 | Process for preparing para-aminophenol | Norman R. DeLue | 1986-04-22 |
| 4521283 | Electro organic method and apparatus for carrying out same | — | 1985-06-04 |
| 4472251 | Electrolytic synthesis of organic compounds from gaseous reactant | — | 1984-09-18 |
| 4454011 | Electro organic method and apparatus for carrying out same | Malcolm Korach | 1984-06-12 |