Inventor

BOETTNER FRED H

US3 patents

⚠️ This page may combine multiple inventors who share the name “BOETTNER FRED H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GEN ELECTRIC

2 patents

US4454470AJun 12, 1984

Method and apparatus for frequency measurement of an alternating current signal

GEN ELECTRIC14 citations71

US4451770AMay 29, 1984

Method and apparatus for determining the resistance of an AC motor stator

GEN ELECTRIC16 citations71

ACHARYA PARAG VISHWANATH

1 patent

US8477057B2Jul 2, 2013

Systems, methods, and apparatus for sensing AC voltage

ACHARYA PARAG VISHWANATH1 citations45