Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5849674 | Compositions and processes for oil field applications | Kelly B. Fox, Ahmad Moradi-Araghi, David R. Zornes | 1998-12-15 |
| 5449116 | Tie plate for mounting rails | — | 1995-09-12 |
| 5267634 | Continuous-surface composite rail | — | 1993-12-07 |
| 5251732 | Support rail for composite continuous rail | — | 1993-10-12 |
| 5249654 | Surface rail for composite continuous rail | — | 1993-10-05 |
| 5154346 | Rail mounting clip for railroad | — | 1992-10-13 |
| 5120910 | Minimum-joint electrified rail system | — | 1992-06-09 |
| 4657944 | CO.sub.2 -induced in-situ gelation of polymeric viscosifiers for permeability contrast correction | Donald R. Weir | 1987-04-14 |
| 4630678 | In-situ formation of polyvalent metal ions for crosslinking polymers within carbonate rock-containing reservoirs | Naim A. Mumallah, Riley B. Needham | 1986-12-23 |
| 4569393 | CO.sub.2 -Induced in-situ gelation of polymeric viscosifiers for permeability contrast correction | Donald R. Wier | 1986-02-11 |
| 4498539 | Selective plugging of highly permeable subterranean strata by in situ _gelation of polymer solutions | — | 1985-02-12 |
| 4317758 | Viscosity-stabilized aqueous solutions | — | 1982-03-02 |