Issued Patents All Time
Showing 1–25 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12428589 | Synthesis and use of grafted graphene in aqueous drilling fluids as low shear rate viscosity enhancer | Ashok Santra | 2025-09-30 |
| 12391864 | Development of ultra-high molecular weight (UHMW) branched block copolymer shale inhibitor for water based drilling fluid | Sivaprakash Shanmugam, Ashok Santra | 2025-08-19 |
| 12392218 | Additive manufacture of wellbore tubulars | Peter Boul | 2025-08-19 |
| 12384723 | Cement slurries, cured cement and methods of making and use thereof | Sivaprakash Shanmugam, Ashok Santra | 2025-08-12 |
| 12378465 | Development of ultra-high molecular weight (UHMW) branched block copolymer drag reducer with improved mechanical and chemical stability | Sivaprakash Shanmugam, Ashok Santra | 2025-08-05 |
| 12358225 | Additive manufacture-assisted method for making structural elements having controlled failure characteristics | Seyed Mohammad Sajadi, Ashok Kumar Meiyazhagan, Peter Boul, Muhammad M. Rahman, Pulickel M. Ajayan | 2025-07-15 |
| 12351754 | Drilling fluids and methods of making and use thereof | Sivaprakash Shanmugam, Ashok Santra | 2025-07-08 |
| 12065608 | Synthesis and use of grafted graphene in oil based drilling fluids as low shear rate viscosity enhancer | Ashok Santra | 2024-08-20 |
| 12054424 | Encapsulation of silica nanoparticle for release | Sivaprakash Shanmugam, Peter Boul | 2024-08-06 |
| 12054665 | Synthesis and use of grafted graphene in aqueous drilling fluids as low shear rate viscosity enhancer | Ashok Santra | 2024-08-06 |
| 12043787 | Ultra-high molecular weight (UHMW) branched block copolymer viscosifier for water based drilling fluids | Sivaprakash Shanmugam, Ashok Santra | 2024-07-23 |
| 12011872 | Additive manufacture-assisted method for making structural elements having controlled failure characteristics | Seyed Mohammad Sajadi, Ashok Kumar Meiyazhagan, Peter Boul, Muhammad M. Rahman, Pulickel M. Ajayan | 2024-06-18 |
| 11993002 | Additive manufacture-assisted method for making structural elements having controlled failure characteristics | Seyed Mohammad Sajadi, Ashok Kumar Meiyazhagan, Peter Boul, Muhammad M. Rahman, Pulickel M. Ajayan | 2024-05-28 |
| 11993003 | Additive manufacture-assisted method for making structural elements having controlled failure characteristics | Seyed Mohammad Sajadi, Ashok Kumar Meiyazhagan, Peter Boul, Muhammad M. Rahman, Pulickel M. Ajayan | 2024-05-28 |
| 11926784 | Simultaneous association-dissociation of layered silicates on polymers to improve rheology of drilling fluids | Hasmukh A. Patel | 2024-03-12 |
| 11912926 | Synthetic functionalized additives, methods of synthesizing, and methods of use | Hasmukh A. Patel, Ashok Santra | 2024-02-27 |
| 11898084 | Suspension supporting additive for water-based drilling and completions fluids | Hasmukh A. Patel, Ashok Santra | 2024-02-13 |
| 11866637 | Synthesis and use of grafted graphene in wellbore construction fluids for lubrication and corrosion inhibition | Ashok Santra | 2024-01-09 |
| 11851604 | Cationic nitrogen-containing heterocycles and their application in wellbore stability | Hasmukh A. Patel | 2023-12-26 |
| 11851615 | Branched block copolymer for enhanced oil recovery in sandstone formations | Sivaprakash Shanmugam | 2023-12-26 |
| 11851978 | Additive manufacture of casing liner in a wellbore | Peter Boul | 2023-12-26 |
| 11851979 | Additive manufacture of wellbore tubulars | Peter Boul | 2023-12-26 |
| 11840663 | Development of ultra-high molecular weight (UHMW) branched block copolymer drag reducer with improved mechanical and chemical stability | Sivaprakash Shanmugam, Ashok Santra | 2023-12-12 |
| 11840662 | Development of ultra-high molecular weight (UHMW) branched block copolymer shale inhibitor for water based drilling fluid | Sivaprakash Shanmugam, Ashok Santra | 2023-12-12 |
| 11827732 | Amphiphilic branched copolymer drilling additive | Sivaprakash Shanmugam, Ashok Santra | 2023-11-28 |