Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8080498 | Elastic hollow particles for annular pressure buildup mitigation | James E. Shepherd, Joseph F. Rakow | 2011-12-20 |
| 4376463 | Method of applying tensile stress to a casing | William H. Wadlington | 1983-03-15 |