Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7998921 | Method of reducing toilet odor | William T. Edwards, Frederick E. Edwards | 2011-08-16 |
| 7449441 | Liquid composition for reducing toilet odor | William T. Edwards, Frederick E. Edwards | 2008-11-11 |
| 5160499 | Purification of 1,1,1,2-tetrafluoroethane | — | 1992-11-03 |
| 5110996 | Production of vinylidene fluoride | — | 1992-05-05 |
| 4861376 | High-solids alkyl ketene dimer dispersion | David F. Townsend | 1989-08-29 |