Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5256729 | Nitrile derivative for sand control | Helmuth W. Kutta | 1993-10-26 |
| 5199491 | Method of using nitrile derivative for sand control | Helmuth W. Kutta | 1993-04-06 |
| 5048608 | Consolidation of hydraulic fractures employing a polyurethane resin | Durai N. Raghavan | 1991-09-17 |
| 4920192 | Polyurethane quasi prepolymer for proppant consolidation | — | 1990-04-24 |