Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4588031 | Well cementing process | John E. Oliver, Jr. | 1986-05-13 |
| 4588445 | Eliminating drilling mud solids from surface well equipment | John E. Oliver, Jr. | 1986-05-13 |
| 4528102 | Chemically cleaning aqueous fluid of insoluble solids | John E. Oliver, Jr. | 1985-07-09 |
| 4515699 | Chemically cleaning drilling/completion/packer brines | John E. Oliver, Jr. | 1985-05-07 |
| 4474240 | Drilling fluid displacement process | John E. Oliver, Jr. | 1984-10-02 |
| 4456537 | Chemically cleaning drilling/completion/packer brines | John E. Oliver, Jr. | 1984-06-26 |
| 4453598 | Drilling mud displacement process | John E. Oliver, Jr. | 1984-06-12 |