Billson; Duncan
Patent Applications and Registrations
Patent applications and USPTO patent grants for Billson; Duncan.The latest application filed is for "improved electrostatic transducer".
- Billson; Duncan - Warwickshire GB
- BILLSON; Duncan - Kenilworth GB
- Billson; Duncan - Coventry GB
| Patent | Date |
|---|---|
| Electrostatic transducer Grant 10,785,575 - Billson , et al. Sept | 2020-09-22 |
| Electrostatic transducer Grant 10,349,183 - Billson , et al. July 9, 2 | 2019-07-09 |
| Amplifier for electrostatic transducers Grant 9,692,372 - Atkins , et al. June 27, 2 | 2017-06-27 |
| Electrostatic Transducer App 20170171668 - BILLSON; Duncan ; et al. | 2017-06-15 |
| Improved Electrostatic Transducer App 20170171669 - BILLSON; Duncan ; et al. | 2017-06-15 |
| Electrostatic transducer Grant 9,503,821 - Atkins , et al. November 22, 2 | 2016-11-22 |
| Electrostatic Transducer App 20140232236 - Atkins; Brian ; et al. | 2014-08-21 |
| Amplifier for Electrostatic Transducers App 20140233763 - Atkins; Brian ; et al. | 2014-08-21 |
| Ultrasonic liquid viscosity sensor using mode conversion App 20070101804 - Billson; Duncan | 2007-05-10 |
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