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CHEUNG WILLIAM S H

Overview
  • Total Patents
    11
About

CHEUNG WILLIAM S H has a total of 11 patent applications. Its first patent ever was published in 1980. It filed its patents most often in United States, Canada and Australia. Its main competitors in its focus markets electrical machinery and energy, audio-visual technology and machines are AEROVOX WIRELESS CORP, COMET TECHNIK AG and AMERICAN TECH CERAMICS.

Patent filings in countries

World map showing CHEUNG WILLIAM S Hs patent filings in countries

Patent filings per year

Chart showing CHEUNG WILLIAM S Hs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Cheung William S H 11

Latest patents

Publication Filing date Title
US2014150797A1 Air purifier having an electret module
US2012118611A1 Planar electrodes and a method of controlling spacing between electrodes
US2010116417A1 Electronic component fabrication method using removable spacers
US2007281421A1 Device and method for making air, gas or vacuum capacitors and other microwave components
AU2002351122A1 A micro-gap gas filled dielectric capacitor
US4620226A Apparatus for producing audio and visual signals for modulating a television system carrier signal
US4438752A Vehicle ignition system
CA1155518A Encoding of information