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ZELLHOEFER GLENN F

Overview
  • Total Patents
    35
About

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.

Patent filings in countries

World map showing ZELLHOEFER GLENN Fs patent filings in countries
# Country Total Patents
#1 United States 35

Patent filings per year

Chart showing ZELLHOEFER GLENN Fs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zellhoefer Glenn F 35

Latest patents

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