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.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 5 | |
#2 | Australia | 2 | |
#3 | WIPO (World Intellectual Property Organization) | 2 | |
#4 | Algeria | 1 | |
#5 | Egypt | 1 | |
#6 | EPO (European Patent Office) | 1 | |
#7 | Saudi Arabia | 1 |
# | Industry | |
---|---|---|
#1 | Basic materials chemistry | |
#2 | Chemical engineering | |
#3 | Organic fine chemistry | |
#4 | Thermal processes | |
#5 | Environmental technology | |
#6 | Machines |
# | Name | Total Patents |
---|---|---|
#1 | Irvine Robert L | 8 |
#2 | Price Brian C | 4 |
#3 | Nobles John E | 1 |
#4 | Swenson Leonard K | 1 |
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 |