Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8083814 | Quaternary ammonium salt of a mannich compound | Paul R. Stevenson, Dean Thetford | 2011-12-27 |
| 8070837 | Use of fatty acid alkoxylates as a method to remedy engine intake valve sticking | Mark C. Davies, Malcolm MacDuff, Mitchell M. Jackson | 2011-12-06 |
| 7906470 | Quaternary ammonium salt of a Mannich compound | Paul R. Stevenson, Dean Thetford | 2011-03-15 |