David E. Whitehead — 7 Patents at Schweitzer Engineering Laboratories

Issued Patents 2017

Showing 1–7 of 7 patents

Patent #	Title	Co-Inventors	Date
9813173	Time signal verification and distribution	Shankar V. Achanta, Srinivas Achanta	2017-11-07
9760062	Time distribution with multi-band antenna	Shankar V. Achanta, Henry Loehner	2017-09-12
9709680	Quality of precision time sources	Shankar V. Achanta, Henry Loehner	2017-07-18
9627881	Fault detection in electric power delivery systems using underreach, directional, and traveling wave elements	Edmund O. Schweitzer, III, Mangapathirao Venkata Mynam, Armando Guzman-Casillas, Bogdan Z. Kasztenny, Veselin Skendzic +1 more	2017-04-18
9599719	Detection of manipulated satellite time signals	Shankar V. Achanta, Francis Cooper	2017-03-21
9594112	Fault detection in electric power delivery systems using underreach, directional, and traveling wave elements	Edmund O. Schweitzer, III, Mangapathirao Venkata Mynam, Armando Guzman-Casillas, Bogdan Z. Kasztenny, Veselin Skendzic	2017-03-14
9581976	Recording of operating parameters of an intelligent electronic device	Edmund O. Schweitzer, III, Ronald A. Schwartz	2017-02-28