De Stefano; Guido
Patent Applications and Registrations
Patent applications and USPTO patent grants for De Stefano; Guido.The latest application filed is for "wellbore fluids and methods of use thereof".
- De Stefano; Guido - Houston TX
- De Stefano; Guido - Spring TX
| Patent | Date |
|---|---|
| Smart filtrate for strengthening formations Grant 11,149,519 - De Stefano , et al. October 19, 2 | 2021-10-19 |
| Self-crosslinking polymers and platelets for wellbore strengthening Grant 10,883,035 - De Stefano , et al. January 5, 2 | 2021-01-05 |
| Wellbore fluids and methods of use thereof Grant 10,876,026 - De Stefano , et al. December 29, 2 | 2020-12-29 |
| Self-crosslinking polymers for wellbore strengthening Grant 10,689,558 - De Stefano , et al. | 2020-06-23 |
| Smart filter cake for strengthening formations Grant 10,208,561 - De Stefano , et al. Feb | 2019-02-19 |
| Wellbore Fluids and Methods of Use Thereof App 20180320048 - De Stefano; Guido ; et al. | 2018-11-08 |
| Encapsulated polymers and selective activation thereof Grant 10,060,205 - De Stefano , et al. August 28, 2 | 2018-08-28 |
| Emulsifiers For Wellbore Strengthening App 20170174975 - De Stefano; Guido ; et al. | 2017-06-22 |
| Encapsulated Polymers And Selective Activation Thereof App 20170174974 - De Stefano; Guido ; et al. | 2017-06-22 |
| Smart Filter Cake For Strengthening Formations App 20170029688 - De Stefano; Guido ; et al. | 2017-02-02 |
| Smart Filtrate For Strengthening Formations App 20170015890 - De Stefano; Guido ; et al. | 2017-01-19 |
| Smart Lcm For Strengthening Earthen Formations App 20170015887 - De Stefano; Guido ; et al. | 2017-01-19 |
| Self-crosslinking Polymers For Wellbore Strengthening App 20160319179 - De Stefano; Guido ; et al. | 2016-11-03 |
| Self-crosslinking Polymers And Platelets For Wellbore Strengthening App 20160319180 - De Stefano; Guido ; et al. | 2016-11-03 |
| Reversible Foamed Wellbore Fluids App 20160068736 - De Stefano; Guido ; et al. | 2016-03-10 |
| Polymeric Compositions For Downhole Applications App 20160032169 - Chew; Andrew ; et al. | 2016-02-04 |
| Composition Of Polybutadiene-based Formula For Downhole Applications App 20140305646 - Chew; Andrew ; et al. | 2014-10-16 |
| Self-breakable yield point enhancer for oil based drilling mud Grant 7,956,014 - Merli , et al. June 7, 2 | 2011-06-07 |
| Self-Breakable Yield Point Enhancer for Oil Based Drilling Mud App 20080318810 - Merli; Luigi ; et al. | 2008-12-25 |
| Clay inhibitors for the drilling industry App 20070207932 - Merli; Luigi ; et al. | 2007-09-06 |
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