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INDUSTRIAL RES PROD INC

Overview
  • Total Patents
    50
About

INDUSTRIAL RES PROD INC has a total of 50 patent applications. Its first patent ever was published in 1954. It filed its patents most often in Germany, United States and United Kingdom. Its main competitors in its focus markets audio-visual technology, computer technology and basic communication technologies are KNOWLES ELECTRONICS INC, D & B AUDIOTECHNIK GMBH and SHENZHEN GUANXU ELECTRONICS CO LTD.

Patent filings in countries

World map showing INDUSTRIAL RES PROD INCs patent filings in countries
# Country Total Patents
#1 Germany 13
#2 United States 13
#3 United Kingdom 12
#4 Denmark 8
#5 Switzerland 3
#6 Canada 1

Patent filings per year

Chart showing INDUSTRIAL RES PROD INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Carlson Elmer V 9
#2 Carlson Elmer Victor 8
#3 Victor Carlson Elmer 3
#4 Knowles Hugh S 3
#5 Clifford Killion Mead 3
#6 Killion Mead Clifford 3
#7 Elmer Victor Carlson 3
#8 Mead Clifford Killion 3
#9 Mostardo August F Jr 2
#10 Cross Floyd W 2

Latest patents

Publication Filing date Title
US3766332A Electroacoustic transducer
DE1916719A1 Electroacoustic converter
GB1219299A Improvements in audio frequency amplification circuits
GB1192433A Improvements in or relating to Electro-Acoustic Transducers
GB1192432A Improvements in or relating to Piezoelectric Transducers
DE1462163A1 Converter
GB1099857A Connection of a drive pin to an armature of a transducer
DK141310B Electroacoustic converter.
GB1079044A Electromechanical transducer
US3347991A Shock resistant transducer
US3313892A Electromechanical transducers
US3257510A Feedback control apparatus
DE1199581B Method and device for producing self-supporting bobbins with the aid of a winding mandrel
US3251954A Electroacoustic transducer
US3413424A Electro-acoustic transducer
US3182384A Method of making self-supporting coils and mandrel therefor
US3177412A Electro-mechanical transducer
US3111563A Electro-mechanical transducer
US2912523A Electro-acoustic transducer
US2912522A Electro-mechanical transducing device