Welch; John C.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Welch; John C..The latest application filed is for "additive manufacturing of functionally gradient degradable tools".
- Welch; John C. - Spring TX
| Patent | Date |
|---|---|
| Treatment fluids for a subterranean formation Grant 10,907,089 - Agrawal , et al. February 2, 2 | 2021-02-02 |
| Hybrid disintegrable articles Grant 10,851,611 - Khatiwada , et al. December 1, 2 | 2020-12-01 |
| Additive manufacturing of functionally gradient degradable tools Grant 10,807,355 - Welch , et al. October 20, 2 | 2020-10-20 |
| High temperature hydrophobic chemical resistant coating for downhole applications Grant 10,352,133 - Sadana , et al. July 16, 2 | 2019-07-16 |
| Additive manufacturing of functionally gradient degradable tools Grant 10,335,855 - Welch , et al. | 2019-07-02 |
| Additive Manufacturing Of Functionally Gradient Degradable Tools App 20180297351 - Welch; John C. ; et al. | 2018-10-18 |
| Additive manufacturing of functionally gradient degradable tools Grant 10,059,092 - Welch , et al. August 28, 2 | 2018-08-28 |
| Treatment Fluids For A Subterranean Formation App 20180179437 - Agrawal; Devesh Kumar ; et al. | 2018-06-28 |
| Methods of stabilizing clays within a subterranean formation Grant 9,902,896 - Agrawal , et al. February 27, 2 | 2018-02-27 |
| Additive Manufacture With Magnetic Imprint App 20170336191 - Welch; John C. ; et al. | 2017-11-23 |
| Hybrid Disintegrable Articles App 20170291222 - Khatiwada; Suman ; et al. | 2017-10-12 |
| Formation collapse sensor and related methods Grant 9,753,171 - Welch , et al. September 5, 2 | 2017-09-05 |
| Methods Of Stabilizing Clays Within A Subterranean Formation, And Related Treatment Fluids App 20170210973 - Agrawal; Devesh Kumar ; et al. | 2017-07-27 |
| High Temperature Hydrophobic Chemical Resistant Coating For Downhole Applications App 20170122073 - Sadana; Anil ; et al. | 2017-05-04 |
| Additive Manufacturing Of Functionally Gradient Degradable Tools App 20170072471 - Welch; John C. ; et al. | 2017-03-16 |
| Additive Manufacturing Of Functionally Gradient Degradable Tools App 20170072465 - Welch; John C. ; et al. | 2017-03-16 |
| Sand Control Using Shape Memory Materials App 20160160617 - Garza; Ramon R. ; et al. | 2016-06-09 |
| Formation Collapse Sensor And Related Methods App 20160109607 - Welch; John C. ; et al. | 2016-04-21 |
| Self-inhibited swell packer compound Grant 9,090,812 - Gerrard , et al. July 28, 2 | 2015-07-28 |
| Downhole fluid separation system and method Grant 8,876,944 - Ren , et al. November 4, 2 | 2014-11-04 |
| In Situ Plasticization of Polymers For Actuation or Mechanical Property Change App 20140020910 - FALKNER; JOSHUA C. ; et al. | 2014-01-23 |
| Downhole Fluid Separation System And Method App 20130180401 - Ren; Jiaxiang ; et al. | 2013-07-18 |
| Chemical Glass Transition Temperature Reducer App 20130161026 - Garza; Ramon R. ; et al. | 2013-06-27 |
| Self-inhibited Swell Packer Compound App 20130146312 - Gerrard; David P. ; et al. | 2013-06-13 |
| Nano-coatings For Articles App 20120202047 - Welch; John C. ; et al. | 2012-08-09 |
| Swellable Member, Swell Controlling Arrangement and Method of Controlling Swelling of a Swellable Member App 20120090857 - Welch; John C. ; et al. | 2012-04-19 |
| Downhole formation sampling Grant 7,958,936 - McGregor , et al. June 14, 2 | 2011-06-14 |
| Method and apparatus for downhole sampling Grant 7,775,276 - Pelletier , et al. August 17, 2 | 2010-08-17 |
| Method and apparatus for downhole sampling App 20070205021 - Pelletier; Michael T. ; et al. | 2007-09-06 |
| Downhole formation sampling App 20050194134 - McGregor, Malcolm Douglas ; et al. | 2005-09-08 |
| Use of alkoxylated surfactants and aluminum chlorohydrate to improve brine-based drilling fluids Grant 6,194,355 - Jarrett , et al. February 27, 2 | 2001-02-27 |
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