Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4357248 | Treating wells with self-precipitating scale inhibitor | Jimmie B. Lawson, Edwin A. Richardson | 1982-11-02 |
| 4289633 | Chemical process for backsurging fluid through well casing perforations | Edwin A. Richardson, Ronald F. Scheuerman | 1981-09-15 |
| 4232741 | Temporarily plugging a subterranean reservoir with a self-foaming aqueous solution | Edwin A. Richardson, Ronald F. Scheuerman, Joseph Reisberg, James H. Lybarger | 1980-11-11 |
| 4219083 | Chemical process for backsurging fluid through well casing perforations | Edwin A. Richardson, Ronald F. Scheuerman | 1980-08-26 |