TECH-STAR FLUID SYSTEMS INC.
Patent Applications and Registrations
Patent applications and USPTO patent grants for TECH-STAR FLUID SYSTEMS INC..The latest application filed is for "drilling fluid and method for drilling in coal-containing formations".
- TECH-STAR FLUID SYSTEMS INC. - Calgary N/A CA
- TECH-STAR FLUID SYSTEMS INC.; - US
| Patent | Date |
|---|---|
| Drilling fluid and method for drilling a wellbore Grant 9,670,394 - Smith June 6, 2 | 2017-06-06 |
| 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 |
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