Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7951211 | Quaternary ammonium salt detergents for use in fuels | William R. S. Barton, Mark C. Davies, Paul R. Stevenson, Dean Thetford | 2011-05-31 |
| 7947093 | Quaternary ammonium salt detergents for use in fuels | William R. S. Barton, Mark C. Davies, Paul R. Stevenson, Dean Thetford | 2011-05-24 |