Issued Patents All Time
Showing 151–170 of 170 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10030189 | Salt-free invert emulsion drilling fluids and methods of drilling boreholes | Dhanashree Gajanan Kulkarni, Shadaab Syed Maghrabi | 2018-07-24 |
| 9988569 | Methods and materials to enhance high temperature rheology in invert emulsions | Shadaab Syed Maghrabi, Sharath Savari, Sandeep D. Kulkarni | 2018-06-05 |
| 9976069 | Invert emulsion for swelling elastomer and filtercake removal in a well | Kushabhau D. Teke, Dhanashree Gajanan Kulkarni | 2018-05-22 |
| 9840652 | Water-based drilling fluid with cyclodextrin shale stabilizer | Dhanashree Gajanan Kulkarni, Ramesh Muthusamy | 2017-12-12 |
| 9796907 | Invert emulsion gravel pack fluid and method | Dhanashree Gajanan Kulkarni | 2017-10-24 |
| 9611417 | Invert emulsion drilling fluid containing a hygroscopic liquid and a polymeric suspending agent | Shadaab Syed Maghrabi | 2017-04-04 |
| 9518206 | Invert emulsion fluid containing a hygroscopic liquid, a polymeric suspending agent, and low-density solids | Shadaab Syed Maghrabi, Dhanashree G. Kulkarni | 2016-12-13 |
| 9469803 | Invert emulsion fluids | Shadaab Syed Maghrabi, Dhanashree G. Kulkarni | 2016-10-18 |
| 9376608 | Invert emulsion drilling fluid containing a hygroscopic liquid and a polymeric suspending agent | Shadaab Syed Maghrabi | 2016-06-28 |
| 9346995 | Methods and materials to enhance high temperature rheology in invert emulsions | Shadaab Syed Maghrabi, Sharath Savari, Sandeep D. Kulkarni | 2016-05-24 |
| 9296941 | Invert emulsion gravel pack fluid and method | Dhanashree Gajanan Kulkarni | 2016-03-29 |
| 9296937 | Method of drilling boreholes with invert emulsion drilling fluids having enhanced rheology | Shadaab Syed Maghrabi, Dhanashree Gajanan Kulkarni | 2016-03-29 |
| 9284479 | Invert emulsion for swelling elastomer and filtercake removal in a well | Kushabhau D. Teke, Dhanashree Gajanan Kulkarni | 2016-03-15 |
| 9267069 | Water-based drilling fluid with cyclodextrin shale stabilizer | Dhanashree Gajanan Kulkarni, Ramesh Muthusamy | 2016-02-23 |
| 9133385 | Method for improving high temperature rheology in drilling fluids | Sharath Savari, Sandeep D. Kulkarni | 2015-09-15 |
| 9127192 | Invert drilling fluids having enhanced rheology and methods of drilling boreholes | Shadaab Syed Maghrabi, Kushabhau D. Teke, Dhanashree Gajanan Kulkarni | 2015-09-08 |
| 8950492 | Invert emulsion fluid containing a hygroscopic liquid, a polymeric suspending agent, and low-density solids | Shadaab Syed Maghrabi, Dhanashree G. Kulkarni | 2015-02-10 |
| 8936111 | Invert drilling fluids having enhanced rheology and methods of drilling boreholes | Shadaab Syed Maghrabi, Kushabhau D. Teke, Dhanashree Gajanan Kulkarni, Kunal Sharad Kulkarni | 2015-01-20 |
| 8691733 | Suspension characteristics in invert emulsions | Jeffrey J. Miller, Shadaab Syed Maghrabi, William Walter Shumway | 2014-04-08 |
| 7939470 | Invert emulsion drilling fluids comprising quaternary ammonium emulsifiers and argillaceous solids and methods of drilling boreholes | Shadaab Syed Maghrabi | 2011-05-10 |