Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7405185 | Process for making Group II metal overbased sulfurized alkylphenols | Robert H. Wollenberg | 2008-07-29 |
| 6551967 | Low overbased alkylaryl sulfonates | William F. King, Curtis B. Campbell, Olivier Clement, Jean-Louis Le Coent, Richard J. Nelson +1 more | 2003-04-22 |
| 6204226 | Mixture of alkyl-phenyl-sulfonates of alkaline earth metals, its application as an additive for lubricating oil, and methods of preparation | Jean-Louis Le Coent, Olivier Clement, Amedee Guellec, William F. King, Richard J. Nelson | 2001-03-20 |
| 5780398 | High overbased alkyloxy aromatic sulfonate-carboxylates as lube oil additives | William F. King, Richard J. Nelson, Robert H. Wollenberg | 1998-07-14 |