Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4556109 | Process for cementing geothermal wells | — | 1985-12-03 |
| 4548270 | Process for plugging a subterranean formation | — | 1985-10-22 |
| 4328036 | High temperature expanding cement composition and use | Erik Nelson | 1982-05-04 |
| 4210455 | Retarded aqueous hydraulic cement slurry | Arthur S. Metcalf | 1980-07-01 |