Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8216461 | Method of adding fuel additive to diesel fuel | Ronald P. Rohrbach, Gary B. Zulauf, Peter D. Unger, Weston H. Gerwin, Daniel E. Bause +1 more | 2012-07-10 |
| 7938960 | Fuel filter and method of adding fuel additive to diesel fuel | Ronald P. Rohrbach, Gary B. Zulauf, Peter D. Unger, Weston H. Gerwin, Daniel E. Bause +1 more | 2011-05-10 |