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WARREN MFG COMPANY INC

Overview
  • Total Patents
    15
About

WARREN MFG COMPANY INC has a total of 15 patent applications. Its first patent ever was published in 1957. It filed its patents most often in United States. Its main competitors in its focus markets electrical machinery and energy, telecommunications and control are LORAIN PROD CORP, SILICON MITUS INC and SHANGHAI SOUTHCHIP SEMICONDUCTOR TECH CO LTD.

Patent filings in countries

World map showing WARREN MFG COMPANY INCs patent filings in countries
# Country Total Patents
#1 United States 15

Patent filings per year

Chart showing WARREN MFG COMPANY INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Rhyne Jr Earl C 9
#2 Contino John S 3
#3 Dornhoefer Edna M 3
#4 Dornhoefer Warren J 2

Latest patents

Publication Filing date Title
US3238438A Load current distributing circuit for power supplies connected in parallel
US3204193A Transistorized low-voltage responsive alarm
US3281651A Counter e. m. f. control system
US3260918A Regulated power supply
US3241035A A.c.-d.c. regulated power supply
US3041551A Electric current inverter
US3200322A Transistor switching circuit
US3074032A Transistor l-c oscillator with inductive feedback
US3084322A Power rectifying apparatus
US2986690A Battery charging apparatus
US2972097A Regulated power rectifier
US3174053A Power transistor amplifier having current balancing means
US3047736A Transistor switching amplifier
US3044046A Telemetering system
US2930868A Low stray-field relays