Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7024628 | Broad band test point element management system | Richard Dziekan | 2006-04-04 | |
| 5658455 | Fluidized bed coking process | David G. Hammond, Mitchell Jacobson, John F. Pagel, Martin C. Poole, Willibald Serrand | 1997-08-19 | $229,086,000 |
| 5320746 | Process for recovering oil from tar sands | Gordon F. Stuntz, Russell John Koveal | 1994-06-14 | $22,702,000 |
| 5176819 | Coking process with hot solids recycled to the stripping zone | — | 1993-01-05 | $67,930,000 |
| 4520281 | Wide pulse range periodic reverse unit | Ralph R. Green | 1985-05-28 | |
| 4441985 | Process for supplying the heat requirement of a retort for recovering oil from solids by partial indirect heating of in situ combustion gases, and combustion air, without the use of supplemental fuel | James Burchfield | 1984-04-10 | $13,845,000 |