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PRITCHARD CORP

Overview
  • Total Patents
    13
About

PRITCHARD CORP has a total of 13 patent applications. Its first patent ever was published in 1983. It filed its patents most often in United States, Australia and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets basic materials chemistry, chemical engineering and organic fine chemistry are RANDALL CORP, CHART ENERGY & CHEMICALS INC and LINDE ENG NORTH AMERICA INC.

Patent filings per year

Chart showing PRITCHARD CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Irvine Robert L 8
#2 Price Brian C 4
#3 Nobles John E 1
#4 Swenson Leonard K 1

Latest patents

Publication Filing date Title
US5657643A Closed loop single mixed refrigerant process
US5730860A Process for desulfurizing gasoline and hydrocarbon feedstocks
US5268515A Process of preparing an isopropanol and diisopropyl ether oxgenate motor fuel additive
US5191129A Method of preparing an isopropanol and diisopropyl ether oxygenate motor fuel additive
US4460395A Method and apparatus for producing food grade carbon dioxide