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BERGH RALPH A

Overview
  • Total Patents
    15
About

BERGH RALPH A has a total of 15 patent applications. Its first patent ever was published in 1988. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and EPO (European Patent Office). Its main competitors in its focus markets measurement and optics are HILL JAYSON, MICRO ITALIANA SPA and SRINIVASAN TILAK.

Patent filings in countries

World map showing BERGH RALPH As patent filings in countries
# Country Total Patents
#1 United States 7
#2 WIPO (World Intellectual Property Organization) 4
#3 EPO (European Patent Office) 3
#4 Canada 1

Patent filings per year

Chart showing BERGH RALPH As patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Measurement
#2 Optics

Top inventors

# Name Total Patents
#1 Bergh Ralph A 15
#2 Goettsche Randy P 1

Latest patents

Publication Filing date Title
WO2011140534A2 Method and apparatus for multiplexing multiple sagnac interferometers with single input for source light
US2013050709A1 Sagnac interferometer with bundle-fiber coil
US2012134005A1 Occasional calibration phase-difference modulation for sagnac interferometer
US2011037972A1 Interferometer employing a multi-waveguide optical loop path and fiber optic rotation rate sensor employing same
US2008218765A1 Signal processing for a Sagnac interferometer
CA2114032A1 Fiber optic winding
US4869592A Method and apparatus for obtaining a digital measure of absolute rotation