Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
WH

William R. Heffner

ATAT&T: 4 patents #4,399 of 18,772Top 25%
BLBell Telephone Laboratories: 1 patents #567 of 1,445Top 40%
THTriquint Technology Holding: 1 patents #47 of 141Top 35%
Plainfield, NJ: #33 of 175 inventorsTop 20%
New Jersey: #14,190 of 69,400 inventorsTop 25%
Overall (All Time): #880,176 of 4,157,543Top 25%
6 Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6555457 Method of forming a laser circuit having low penetration ohmic contact providing impurity gettering and the resultant laser circuit Gustav E. Derkits, Jr., Padman Parayanthal, Patrick Carroll, Ranjani Muthiah 2003-04-29
6265237 In-wafer testing of DFB semiconductor lasers John Evan Johnson 2001-07-24
6255707 Semiconductor laser reliability test structure and method Richard B. Bylsma, Gustav E. Derkits, Jr. 2001-07-03
4529271 Matrix addressed bistable liquid crystal display Dwight W. Berreman, Allan R. Kmetz 1985-07-16
4505548 Bistable liquid crystal twist cell Dwight W. Berreman 1985-03-19
4239345 Bistable liquid crystal twist cell Dwight W. Berreman 1980-12-16