ZELLHOEFER GLENN F has a total of 35 patent applications. Its first patent ever was published in 1930. It filed its patents most often in United States. Its main competitors in its focus markets basic materials chemistry, environmental technology and thermal processes are VNI EX K I ELEKTRO, NIHON FREEZER CO LTD and AMUNDSEN IVAR.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 35 |
# | Industry | |
---|---|---|
#1 | Basic materials chemistry | |
#2 | Environmental technology | |
#3 | Thermal processes | |
#4 | Organic fine chemistry |
# | Name | Total Patents |
---|---|---|
#1 | Zellhoefer Glenn F | 35 |
Publication | Filing date | Title |
---|---|---|
US2149947A | Refrigeration | |
US2107320A | Refrigeration | |
US2099382A | Refrigerating apparatus | |
US2111234A | Preparation of di-ethers of tetraethylene glycol | |
US2040912A | Absorption refrigeration | |
US2055191A | Electrically operated and controlled refrigerating apparatus | |
US2040910A | Absorption refrigeration | |
US2040911A | Absorption refrigeration | |
US2040909A | Absorption refrigeration | |
US2040907A | Absorption refrigeration | |
US2040906A | Absorption refrigeration | |
US2040908A | Absorption refrigeration | |
US2040901A | Absorption refrigeration | |
US2040904A | Absorption refrigeration | |
US2040902A | Absorption refrigeration | |
US2040903A | Absorption refrigeration | |
US2040900A | Absorption refrigeration | |
US2107319A | Absorption refrigerating apparatus | |
US2042694A | Cooling unit | |
US2040897A | Absorption refrigeration |