Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5219026 | Acidizing method for gravel packing wells | Paul Shu, William P. Donlon, E. Thomas Strom | 1993-06-15 |
| 5211235 | Sand control agent and process | Paul Shu, E. Thomas Strom, Charles S. Yeh | 1993-05-18 |
| 5209296 | Acidizing method for gravel packing wells | William P. Donlon, E. Thomas Strom, Charles S. Yeh | 1993-05-11 |
| 5165476 | Gravel packing of wells with flow-restricted screen | — | 1992-11-24 |
| 5161618 | Multiple fractures from a single workstring | Malcolm K. Strubhar, William P. Donlon | 1992-11-10 |
| 5161613 | Apparatus for treating formations using alternate flowpaths | — | 1992-11-10 |
| 5113935 | Gravel packing of wells | Charles S. Yeh | 1992-05-19 |
| 5082052 | Apparatus for gravel packing wells | Charles S. Yeh, Christopher Chow | 1992-01-21 |
| 5080172 | Method of recovering oil using continuous steam flood from a single vertical wellbore | — | 1992-01-14 |
| 4947933 | Temperature activated polymer for profile control | Winston R. Shu | 1990-08-14 |
| 4945991 | Method for gravel packing wells | — | 1990-08-07 |
| 4917185 | Method to improve matrix acidizing in carbonates | Alfred R. Jennings, Jr., Paul Shu | 1990-04-17 |
| 4854385 | Oil recovery process utilizing gravitational forces | B. George Hurd, Lloyd K. Strange | 1989-08-08 |
| 4815537 | Method for viscous hydrocarbon recovery | — | 1989-03-28 |
| 4807702 | Method for improving high impulse fracturing | Alfred R. Jennings, Jr. | 1989-02-28 |
| 4787456 | Method to improve matrix acidizing in carbonates | Alfred R. Jennings, Jr. | 1988-11-29 |
| 4787449 | Oil recovery process in subterranean formations | — | 1988-11-29 |
| 4774888 | In situ disposable gel canister | Lawrence R. Stowe | 1988-10-04 |
| 4751966 | Use of a gel above a controlled pulse fracturing device | — | 1988-06-21 |
| 4741399 | Oil recovery process utilizing gravitational forces | B. George Hurd, Lloyd K. Strange | 1988-05-03 |
| 4739832 | Method for improving high impulse fracturing | Alfred R. Jennings, Jr. | 1988-04-26 |
| 4733726 | Method of improving the areal sweep efficiency of a steam flood oil recovery process | Bassem R. Alameddine | 1988-03-29 |
| 4714114 | Use of a proppant with controlled pulse fracturing | — | 1987-12-22 |
| 4694727 | Situ disposable gel canister | Lawrence R. Stowe | 1987-09-22 |
| 4640357 | Multistep method for viscous hydrocarbon recovery | — | 1987-02-03 |