Crawford; Donald Leon
Patent Applications and Registrations
Patent applications and USPTO patent grants for Crawford; Donald Leon.The latest application filed is for "in-line integrity checker".
- Crawford; Donald Leon - Spring TX
| Patent | Date |
|---|---|
| In-line integrity checker Grant 10,490,054 - Crawford , et al. Nov | 2019-11-26 |
| In-line Integrity Checker App 20170032653 - Crawford; Donald Leon ; et al. | 2017-02-02 |
| Pressure-activated switch Grant 9,334,715 - Bonavides , et al. May 10, 2 | 2016-05-10 |
| Systems and methods of harvesting information from a well-site Grant 9,322,247 - Rojas , et al. April 26, 2 | 2016-04-26 |
| Pressure-activated switch Grant 8,967,291 - Bonavides , et al. March 3, 2 | 2015-03-03 |
| Pressure-Activated Switch App 20140290948 - Bonavides; Clovis Satyro ; et al. | 2014-10-02 |
| Mechanical actuator with electronic adjustment Grant 8,739,860 - Crawford , et al. June 3, 2 | 2014-06-03 |
| Systems And Methods Of Harvesting Information From A Well-site App 20140083688 - Rojas; Fabian Fidel ; et al. | 2014-03-27 |
| Systems And Methods For A Modular Drum With A Common Power Pack Unit App 20140048286 - Rojas; Fabian Fidel ; et al. | 2014-02-20 |
| Pressure-Activated Switch App 20130327514 - Bonavides; Clovis Satyro ; et al. | 2013-12-12 |
| Mechanical Actuator With Electronic Adjustment App 20110272145 - Crawford; Donald Leon ; et al. | 2011-11-10 |
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