Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11434405 | Additives for oil and gas drilling and production | Ashok Santra | 2022-09-06 |
| 11434408 | Terpene-based spotting fluid compositions for differential sticking | Carl Thaemlitz | 2022-09-06 |
| 11407927 | Additives for oil and gas drilling and production | Ashok Santra | 2022-08-09 |
| 11370954 | Additives for oil and gas drilling and production | Ashok Santra | 2022-06-28 |
| 11028043 | N-hydroxyalkylated polyamines, methods of making n-hydroxyalkylated polyamines, and fluids containing an n-hydroxyalkylated polyamine | B. Raghava Reddy | 2021-06-08 |
| 10934249 | N-hydroxyalkylated polyamines, methods of making N-hydroxyalkylated polyamines, and fluids containing an N-hydroxyalkylated polyamine | B. Raghava Reddy | 2021-03-02 |
| 10894910 | Additives for oil and gas drilling and production | Ashok Santra | 2021-01-19 |
| 10767099 | Compositions and methods for sealing off flow channels in contact with wet cement | B. Raghava Reddy | 2020-09-08 |
| 10677001 | Downhole in-situ heat generation to remove filtercake | Pubudu H. Gamage | 2020-06-09 |
| 10677002 | Downhole in-situ heat generation to remove filtercake | Pubudu H. Gamage | 2020-06-09 |
| 10526458 | Gellable, non-aqueous oil well treatment fluids comprising elastomeric maleic anhydride copolymers | B. Raghava Reddy | 2020-01-07 |
| 10400527 | Downhole in-situ heat generation to remove filtercake | Pubudu H. Gamage | 2019-09-03 |
| 10351752 | Compositions and methods for sealing off flow channels in contact with set cement | B. Raghava Reddy | 2019-07-16 |
| 10343976 | N-hydroxyalkylated polyamines, methods of making N-hydroxyalkylated polyamines, and fluids containing an N-hydroxyalkylated polyamine | B. Raghava Reddy | 2019-07-09 |
| 10160901 | Oil-swellable, desolvated polymer gels and methods of using the same for preventing loss of non-aqueous wellbore fluids to the subterranean formation | B. Raghava Reddy | 2018-12-25 |
| 10155898 | Oil-swellable, desolvated polymer gels and methods of using the same for preventing loss of non-aqueous wellbore fluids to the subterranean formation | B. Raghava Reddy | 2018-12-18 |
| 10131622 | N-hydroxyalkylated polyamines, methods of making N-hydroxyalkylated polyamines, and fluids containing an N-hydroxyalkylated polyamine | B. Raghava Reddy | 2018-11-20 |
| 10113100 | Compositions with polyaziridine crosslinkers for treating subterranean formations | B. Raghava Reddy | 2018-10-30 |
| 10081756 | Loss circulation material composition comprising oil-swellable and desolvated polymer gels | B. Raghava Reddy | 2018-09-25 |
| 9932512 | Compositions with polyaziridine crosslinkers for treating subterranean formations | B. Raghava Reddy | 2018-04-03 |
| 9170250 | Oilfield chemicals with attached spin probes | Marc N. Lehmann | 2015-10-27 |
| 9163194 | Copolymers for use as paraffin behavior modifiers | Jennifer Louise Sonne | 2015-10-20 |
| 8657948 | Modified bentonites for advanced foundry applications | Charles R. Landis, Thomas G. Anderson, Eric B. Frantz, Don Dell | 2014-02-25 |