Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690174 | Oil and gas field chemicals | Richard George Chapman, Stephen Paul Goodwin, Andrew Richard Lucy, Nevin John Stewart | 1997-11-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690174 | Oil and gas field chemicals | Richard George Chapman, Stephen Paul Goodwin, Andrew Richard Lucy, Nevin John Stewart | 1997-11-25 |