Sangster; John David
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sangster; John David.The latest application filed is for "rotary actuator".
- Sangster; John David - Westhill GB
- Sangster; John David - Aberdeen GB
- Sangster; John David - Aberdeenshire GB
| Patent | Date |
|---|---|
| Rotary actuator Grant 11,391,304 - Cowie , et al. July 19, 2 | 2022-07-19 |
| Valve Grant 11,047,206 - Cowie , et al. June 29, 2 | 2021-06-29 |
| Gate valve Grant 10,801,287 - Cowie , et al. October 13, 2 | 2020-10-13 |
| Rotary Actuator App 20200291967 - COWIE; Gavin David ; et al. | 2020-09-17 |
| Test tree and actuator Grant 10,683,721 - Cowie , et al. | 2020-06-16 |
| Valve App 20200056447 - Cowie; Gavin David ; et al. | 2020-02-20 |
| Gate Valve App 20190277106 - COWIE; Gavin David ; et al. | 2019-09-12 |
| Rotary actuator Grant 10,267,342 - Cowie , et al. | 2019-04-23 |
| Valve apparatus Grant 10,246,969 - Cowie , et al. | 2019-04-02 |
| Valve Apparatus App 20170138152 - COWIE; Gavin David ; et al. | 2017-05-18 |
| Test Tree And Actuator App 20170122057 - COWIE; Gavin David ; et al. | 2017-05-04 |
| Rotary Actuator App 20170114808 - COWIE; Gavin David ; et al. | 2017-04-27 |
| Wellbore control device Grant 7,779,918 - Cowie , et al. August 24, 2 | 2010-08-24 |
| Wellbore Control Device App 20080257557 - Cowie; Gavin David ; et al. | 2008-10-23 |
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