Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4222853 | Application of sulfosuccinic ester anti-fouling agents | Marc Durrieu, John R. Richmond | 1980-09-16 |
| 4200550 | Process and apparatus for desalting crude petroleum | Claude Baumann, Herbert Wiegandt, John R. Richmond, Bernard Siffert, Claudine Bourgeois | 1980-04-29 |