Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4232741 | Temporarily plugging a subterranean reservoir with a self-foaming aqueous solution | Edwin A. Richardson, Ronald F. Scheuerman, David C. Berkshire, Joseph Reisberg | 1980-11-11 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4232741 | Temporarily plugging a subterranean reservoir with a self-foaming aqueous solution | Edwin A. Richardson, Ronald F. Scheuerman, David C. Berkshire, Joseph Reisberg | 1980-11-11 |