Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9588327 | Nanoindenter multimodal microscope objective for mechanobiology | Kimani C. Toussaint, Placid M. Ferreira, Amy Wagoner Johnson | 2017-03-07 |
| 6624744 | Golf cart keyless control system | Lars William Johnson | 2003-09-23 |
| 5544705 | Method for injecting fluid into a wellbore | Richard R. Jones | 1996-08-13 |
| 5360787 | Dispersant compositions comprising sulfonated isobutylene maleic anhydride copolymer for subterranean well drilling and completion | James B. Bloys, Edward Malachosky, Roger D. Bradshaw, Roger A. Grey | 1994-11-01 |
| 5292367 | Dispersant compositions for subterranean well drilling and completion | James B. Bloys, Edward Malachosky, Robert B. Carpenter, Roger D. Bradshaw | 1994-03-08 |
| 5113943 | Spacer fluids | Roger D. Bradshaw, Bonsall S. Wilton, Robert B. Carpenter | 1992-05-19 |
| 5076852 | Cementing oil and gas wells | James B. Bloys, Roger D. Bradshaw | 1991-12-31 |
| 5038863 | Cementing oil and gas wells | James B. Bloys, Roger D. Bradshaw | 1991-08-13 |
| 5030366 | Spacer fluids | Roger D. Bradshaw, Bonsall S. Wilton, Robert B. Carpenter | 1991-07-09 |
| 5027900 | Incremental density cementing spacers | — | 1991-07-02 |
| 5005646 | Accelerating set of retarded cement | J. Benjamin Bloys, Robert B. Carpenter | 1991-04-09 |
| 4976316 | Method of accelerating set of cement by washover fluid containing alkanolamine | Robert B. Carpenter | 1990-12-11 |
| 4953620 | Accelerating set of retarded cement | J. Benjamin Bloys, Robert B. Carpenter | 1990-09-04 |
| 4883125 | Cementing oil and gas wells using converted drilling fluid | Leon H. Miles, Brett H. Boyd, Robert B. Carpenter | 1989-11-28 |
| 4662448 | Well treatment method using sodium silicate to seal formation | James D. Ashford, James K. Eastlack, Gary D. Herring | 1987-05-05 |
| 4216022 | Well cementing in permafrost | — | 1980-08-05 |
| 4181533 | Well cementing in permafrost | — | 1980-01-01 |