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EDWIN L WIEGAND

Overview
  • Total Patents
    27
About

EDWIN L WIEGAND has a total of 27 patent applications. Its first patent ever was published in 1928. It filed its patents most often in United States and Canada. Its main competitors in its focus markets electrical machinery and energy, thermal processes and packaging and shipping are WIEGAND CO EDWIN L, TUTTLE & KIFT INC and CHEN SHU-LIEN.

Patent filings in countries

World map showing EDWIN L WIEGANDs patent filings in countries
# Country Total Patents
#1 United States 18
#2 Canada 9

Patent filings per year

Chart showing EDWIN L WIEGANDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Calhoun Ernest N 10
#2 Perry Francis W 5
#3 Basil Horsfield 2
#4 King Robert J 2
#5 Wiegand Edwin L 2
#6 Horsfield Basil 2
#7 Fox Thomas M 2
#8 Lampe James G 2
#9 Wiegand Albert P 1
#10 Greer Millard M 1

Latest patents

Publication Filing date Title
US3202795A Electric heaters
US2323089A Electrical heating element
US2260165A Heating means
US2274445A Heating means
US2290686A Treatment of material particles
US2256706A Electrical heating element
US2260107A Electric heater
US2152953A Electric heating apparatus
US2158604A Electric heating apparatus
US2170175A Heating means
US2219523A Electric resistance heating element and method of making the same
US2158603A Electric heating apparatus
US2158602A Electrical heating apparatus
US2145684A Heating means
US2145564A Heating means
US1884192A Lift for automotive vehicles
US1911204A Combination free wheel and roll-on lift
US1846436A Power lift
CA427268A Hydraulic material separating apparatus
CA403702A Electric heater