Issued Patents All Time
Showing 25 most recent of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5837099 | Office wastepaper deinking process | — | 1998-11-17 |
| 5258099 | Office wastepaper deinking process using fatty alcohols | — | 1993-11-02 |
| 5227019 | Wastepaper deinking process | — | 1993-07-13 |
| 5225046 | Wastepaper deinking process | — | 1993-07-06 |
| 5141986 | Block copolymer dispersions and process to prepare block copolymer dispersions | Jeffrey G. Southwick, Kirk Herbert Raney | 1992-08-25 |
| 5120765 | Block copolymer dispersions and process to prepare block copolymer dispersions | Jeffrey G. Southwick, Kirk Herbert Raney | 1992-06-09 |
| 5069802 | Gas flood surfactants enriched in olefin disulfonate | Hon Chung Lau | 1991-12-03 |
| 5031698 | Steam foam surfactants enriched in alpha olefin disulfonates for enhanced oil recovery | Hon Chung Lau | 1991-07-16 |
| 5024276 | Hydraulic fracturing in subterranean formations | — | 1991-06-18 |
| 4957646 | Steam foam surfactants enriched in alpha olefin disulfonates for enhanced oil recovery | Hon Chung Lau | 1990-09-18 |
| 4911238 | Gas flooding with surfactants enriched in olefin disulfonate | Hon Chung Lau | 1990-03-27 |
| 4856589 | Gas flooding with dilute surfactant solutions | Myron I. Kuhlman, Andrew H. Falls | 1989-08-15 |
| 4856588 | Selective permeability reduction of oil-free zones of subterranean formations | — | 1989-08-15 |
| 4852653 | Method to obtain rapid build-up of pressure in a steam foam process | — | 1989-08-01 |
| 4799547 | A CO.sub.2 drive process for oil recovery employing an alcohol ethoxycarboxylate surfactant | — | 1989-01-24 |
| 4600057 | Method of reducing the permeability of a subterranean formation | — | 1986-07-15 |
| 4563292 | Methods for stabilizing fines contained in subterranean formations | — | 1986-01-07 |
| 4558741 | Methods of minimizing fines migration in subterranean formations | Bill M. Young | 1985-12-17 |
| 4554081 | High density well drilling, completion and workover brines, fluid loss reducing additives therefor and methods of use | S. Prabhakara Rao | 1985-11-19 |
| 4536304 | Methods of minimizing fines migration in subterranean formations | — | 1985-08-20 |
| 4536303 | Methods of minimizing fines migration in subterranean formations | — | 1985-08-20 |
| 4536305 | Methods for stabilizing swelling clays or migrating fines in subterranean formations | Bill M. Young | 1985-08-20 |
| 4524003 | Method of viscosifying aqueous fluids and process for recovery of hydrocarbons from subterranean formations | — | 1985-06-18 |
| 4508629 | Method of viscosifying aqueous fluids and process for recovery of hydrocarbons from subterranean formations | — | 1985-04-02 |
| 4497596 | Method of minimizing fines migration in a subterranean formation | Bill M. Young | 1985-02-05 |