Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7109241 | Antimicrobial compositions formulated for use in cold temperature conditions and methods of use thereof | Francis L. Richter | 2006-09-19 |
| 7056536 | Non-corrosive sterilant composition | Francis L. Richter, Sally K. Swart | 2006-06-06 |
| 6991685 | Low temperature cleaning | Joseph I. Kravitz, Francis L. Richter, Gerald Wichmann | 2006-01-31 |
| 6953507 | Low temperature cleaning | Joseph I. Kravitz, Francis L. Richter, Gerald Wichmann | 2005-10-11 |
| 6855328 | Antimicrobial and antiviral compositions containing an oxidizing species | Robert D. P. Hei, Francis L. Richter, Brian Robert Leafblad | 2005-02-15 |
| 6627657 | Peroxycarboxylic acid compositions and methods of use against microbial spores | John D. Hilgren, Francis L. Richter, Joy A. Salverda, Christina L. Rahm | 2003-09-30 |
| 6589565 | Non-corrosive sterilant composition | Francis L. Richter, Sally K. Swart | 2003-07-08 |
| 6472358 | Acid sanitizing and cleaning compositions containing protonated carboxylic acids | Francis L. Richter, Richard R. Staub, Teresa C. Podtburg | 2002-10-29 |
| 5622708 | Erodible sanitizing caulk | Francis L. Richter, Paula Carlson | 1997-04-22 |
| 5436008 | Sanitizing compositions | Francis L. Richter | 1995-07-25 |
| 5234719 | Food additive sanitizing compositions | Francis L. Richter, Daniel E. Pedersen, Dale L. Fredell | 1993-08-10 |