Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5336500 | Sanitizing composition comprising a blend of aromatic and polyunsaturated carboxylic acid | Francis L. Richter, May J. Biedscheid, Dale L. Fredell | 1994-08-09 |
| 5312624 | Drain treatment product and method of use | Francis L. Richter, James Wilson | 1994-05-17 |