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QUARTZTRONICS INC

Overview
  • Total Patents
    27
About

QUARTZTRONICS INC has a total of 27 patent applications. Its first patent ever was published in 1983. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets measurement, machines and basic communication technologies are TRAFAG AG, ERICHSEN A M GMBH and NIPPON HIHAKAI KEISOKU KENKYUS.

Patent filings in countries

World map showing QUARTZTRONICS INCs patent filings in countries

Patent filings per year

Chart showing QUARTZTRONICS INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Eernisse Errol P 18
#2 Ward Roger W 18
#3 Wood O Lew 3
#4 Eernisse Errol Peter 2
#5 Eer Nisse Errol P 1

Latest patents

Publication Filing date Title
US5168191A Crystal resonator with low acceleration sensitivity and method of manufacture thereof
US5022130A Method of manufacturing crystal resonators having low acceleration sensitivity
US5030876A Mounting structure for crystal resonator
US4935658A Crystal resonator with low acceleration sensitivity and method of manufacture thereof
US4837475A Crystal resonator with low acceleration sensitivity and method of manufacture thereof
US4754646A Resonator pressure transducer structure and method of manufacture
GB8605595D0 At-cut crystal resonator pressure transducer
US4644796A Pressure measurement apparatus and method
US4644803A Force measurement apparatus and method
US4660420A AT-cut crystal resonator pressure transducer
US4526480A Fluid density temperature measurement apparatus and method
US4550610A Resonator pressure transducer
US4535638A Resonator transducer system with temperature compensation
US4574639A Pressure force measurement apparatus and method