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E M HEAVENS

Overview
  • Total Patents
    11
About

E M HEAVENS has a total of 11 patent applications. Its first patent ever was published in 1935. It filed its patents most often in United States. Its main competitors in its focus markets electrical machinery and energy, basic communication technologies and control are DORNIG WALTER DR, ALBERT MAURER and TELCON MAGNETIC CORES LTD.

Patent filings in countries

World map showing E M HEAVENSs patent filings in countries
# Country Total Patents
#1 United States 11

Patent filings per year

Chart showing E M HEAVENSs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Stocker Closman P 6
#2 Martin Huge Henry 3
#3 Pohm George H 1
#4 Huge Henry M 1

Latest patents

Publication Filing date Title
US2377152A Polyphase voltage regulator
US2395389A Magnetic frequency multiplier
US2384171A Frequency changer
US2364558A Rectifying arrangement
US2278669A Frequency changing device
US2274925A Static frequency changer
US2179386A Frequency changing system
US2088621A Electrical system
US2088620A Frequency changing system
US2088619A Frequency reducing system
US2088618A Frequency reducing system