Smith; Carl Keith
Patent Applications and Registrations
Patent applications and USPTO patent grants for Smith; Carl Keith.The latest application filed is for "method for making and using a drilling fluid".
- Smith; Carl Keith - Calgary CA
| Patent | Date |
|---|---|
| Drill fluid and method for tunneling Grant 11,155,742 - Smith , et al. October 26, 2 | 2021-10-26 |
| Method For Making And Using A Drilling Fluid App 20210071058 - STOIAN; STEFAN ALEXANDRU ; et al. | 2021-03-11 |
| Method for making and using a drilling fluid Grant 10,876,027 - Stoian , et al. December 29, 2 | 2020-12-29 |
| Drilling fluid and method for drilling in coal-containing formations Grant 10,738,229 - Stoian , et al. A | 2020-08-11 |
| Drill Fluid And Method For Tunneling App 20190316019 - SMITH; Carl Keith ; et al. | 2019-10-17 |
| Drilling fluid Grant 10,280,353 - Smith | 2019-05-07 |
| Drilling fluid and method for drilling a wellbore Grant 10,202,532 - Smith Feb | 2019-02-12 |
| Drilling Fluid App 20180223154 - SMITH; CARL KEITH | 2018-08-09 |
| Drilling fluid and method for drilling in coal-containing formations Grant 9,969,920 - Smith May 15, 2 | 2018-05-15 |
| Drilling fluid and method for drilling in coal-containing formations Grant 9,850,416 - Smith December 26, 2 | 2017-12-26 |
| Drilling Fluid And Method For Drilling A Wellbore App 20170174973 - SMITH; CARL KEITH | 2017-06-22 |
| Drilling fluid and method for drilling a wellbore Grant 9,670,394 - Smith June 6, 2 | 2017-06-06 |
| Method For Making And Using A Drilling Fluid App 20170058179 - STOIAN; STEFAN ALEXANDRU ; et al. | 2017-03-02 |
| Drilling Fluid And Method For Drilling In Coal-containing Formations App 20170058178 - SMITH; CARL KEITH | 2017-03-02 |
| Drilling Fluid And Methods App 20160024368 - SMITH; CARL KEITH | 2016-01-28 |
| Drilling Fluid And Methods App 20140213489 - SMITH; CARL KEITH | 2014-07-31 |
| Drilling fluid and methods Grant 8,703,658 - Smith April 22, 2 | 2014-04-22 |
| Drilling Fluid And Method For Drilling In Coal-containing Formations App 20130225457 - STOIAN; STEFAN ALEXANDRU ; et al. | 2013-08-29 |
| Drilling Fluid And Method For Drilling In Coal-containing Formations App 20130206479 - Smith; Carl Keith | 2013-08-15 |
| Drilling Fluid And Method For Drilling A Wellbore App 20130126243 - SMITH; CARL KEITH | 2013-05-23 |
| Drilling fluid and method for drilling in coal-containing formations Grant 8,387,723 - Stoian , et al. March 5, 2 | 2013-03-05 |
| Drilling fluid and methods Grant 8,338,340 - Stoian , et al. December 25, 2 | 2012-12-25 |
| Drilling Fluid And Methods App 20110306524 - Smith; Carl Keith | 2011-12-15 |
| Drilling Fluid And Methods App 20110281777 - Stoian; Stefan Alexandru ; et al. | 2011-11-17 |
| Drilling fluid and methods Grant 7,989,399 - Stoian , et al. August 2, 2 | 2011-08-02 |
| Drilling Fluid And Method For Drilling In Coal-containing Formations App 20100089650 - Stoian; Stefan Alexandru ; et al. | 2010-04-15 |
| Drilling Fluid And Methods App 20080217064 - STOIAN; STEFAN ALEXANDRU ; et al. | 2008-09-11 |
| Shale-stabilizing additives Grant 6,706,667 - Smith , et al. March 16, 2 | 2004-03-16 |
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