Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10359494 | Proving unit for non-contact voltage measurement systems | David L. Epperson | 2019-07-23 |
| 10352967 | Non-contact electrical parameter measurement systems | Ronald Steuer, Peter Radda, David L. Epperson, Patrick Scott Hunter, Paul A. Ringsrud +4 more | 2019-07-16 |
| 10254375 | Proving unit for voltage measurement systems | David L. Epperson | 2019-04-09 |