Epperson; David L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Epperson; David L..The latest application filed is for "non-contact current measurement system".
- Epperson; David L. - Everett WA
- Epperson; David L. - Spokane WA
- Epperson; David L. - Granite Falls WA
| Patent | Date |
|---|---|
| Non-contact current measurement system Grant 11,237,192 - Rodriguez , et al. February 1, 2 | 2022-02-01 |
| Non-contact Current Measurement System App 20200191836 - Rodriguez; Ricardo ; et al. | 2020-06-18 |
| Sensor subsystems for non-contact voltage measurement devices Grant 10,605,832 - Epperson , et al. | 2020-03-31 |
| Non-contact current measurement system Grant 10,591,515 - Rodriguez , et al. | 2020-03-17 |
| Proving unit for non-contact voltage measurement systems Grant 10,359,494 - Epperson , et al. | 2019-07-23 |
| Non-contact electrical parameter measurement systems Grant 10,352,967 - Steuer , et al. July 16, 2 | 2019-07-16 |
| Proving unit for voltage measurement systems Grant 10,254,375 - Epperson , et al. | 2019-04-09 |
| Proving Unit For Voltage Measurement Systems App 20180136303 - Epperson; David L. ; et al. | 2018-05-17 |
| Non-contact Current Measurement System App 20180136260 - Rodriguez; Ricardo ; et al. | 2018-05-17 |
| Non-contact Electrical Parameter Measurement Systems App 20180136257 - Steuer; Ronald ; et al. | 2018-05-17 |
| Sensor Subsystems For Non-contact Voltage Measurement Devices App 20180136259 - Epperson; David L. ; et al. | 2018-05-17 |
| Proving Unit For Non-contact Voltage Measurement Systems App 20180136302 - Epperson; David L. ; et al. | 2018-05-17 |
| Magnetically coupled ground reference probe Grant 9,933,459 - Epperson , et al. April 3, 2 | 2018-04-03 |
| Wireless combustion/efficiency analyzer Grant 9,874,547 - Epperson January 23, 2 | 2018-01-23 |
| Power source system with multiple electrical outputs Grant 9,735,588 - Gilbert , et al. August 15, 2 | 2017-08-15 |
| Power Source System With Multiple Electrical Outputs App 20160322831 - Gilbert; John M. ; et al. | 2016-11-03 |
| Wireless Combustion/efficiency Analyzer App 20160061799 - Epperson; David L. | 2016-03-03 |
| Particulate spacers for touch sensitive overlay panel applications Grant 4,965,421 - Epperson * October 23, 1 | 1990-10-23 |
| Particulate spacers for inhibiting Newton rings in touch sensitive overlays Grant 4,696,860 - Epperson September 29, 1 | 1987-09-29 |
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