Everett, Washington
United States
8
2020-06-18
The entities that hold a legal rights for patent applications filed by inventor Epperson David L.:
David L. Epperson from Everett, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Non-contact current measurement system
#2 | 2018-05-17Proving unit for voltage measurement systems
#3 | 2018-05-17Proving unit for non-contact voltage measurement systems
#4 | 2018-05-17Non-contact current measurement system
#5 | 2018-05-17Non-contact electrical parameter measurement systems
#6 | 2018-04-03Magnetically coupled ground reference probe
#7 | 2016-11-03Power source system with multiple electrical outputs
#8 | 2016-03-03Wireless combustion/efficiency analyzer
1460593 ⎘