PB

Patrick C. Brownrigg

HA Hughes Aircraft: 8 patents #132 of 2,963Top 5%
📍 Long Beach, CA: #201 of 2,153 inventorsTop 10%
🗺 California: #66,801 of 386,348 inventorsTop 20%
Overall (All Time): #591,957 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
5270538 System for accurately detecting changes in temperature and pressure Victor Vali, David B. Chang 1993-12-14
5220180 "Fiber optic fuel and liquid gauge having an open rigid ""J"" shaped tube" Victor Vali, David B. Chang 1993-06-15
5118932 Shaft rotation rate sensor with a diffraction grating producing a velocity-related beat frequency Victor Vali, David B. Chang 1992-06-02
5100230 True ground speed sensor David B. Chang, Victor Vali 1992-03-31
5099131 Acquisition and testing of latent fingerprints using upconversion Slava A. Pollack, Victor Vali 1992-03-24
5077482 Liquid gauge having an optical fiber with flexible membrane enclosure Victor Vali, David B. Chang 1991-12-31
5058420 Fiber optic liquid leak detector Victor Vali, David B. Chang 1991-10-22
5018827 Method for eliminating the temperature sensitivity of an optical fiber and a temperature insensitive optical fiber Victor Vali, Bruce Youmans 1991-05-28
5004914 Fiber-optic interferometric chemical sensor Victor Vali, David B. Chang 1991-04-02