Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838352 | Process for plugging subterranean formations | Rudiger Oberste-Padtberg, Herve Perthuis, Sylvie Peulet | 1989-06-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838352 | Process for plugging subterranean formations | Rudiger Oberste-Padtberg, Herve Perthuis, Sylvie Peulet | 1989-06-13 |