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MICROTEL BV

Overview
  • Total Patents
    19
About

MICROTEL BV has a total of 19 patent applications. Its first patent ever was published in 1976. It filed its patents most often in Netherlands, United Kingdom and United States. Its main competitors in its focus markets audio-visual technology, machines and electrical machinery and energy are RADIOTIVE CORP, IMMERSION TECHNOLOGY PROPERTY and AMERICAN THERMOPHONE COMPANY.

Patent filings in countries

World map showing MICROTEL BVs patent filings in countries
# Country Total Patents
#1 Netherlands 9
#2 United Kingdom 5
#3 United States 5

Patent filings per year

Chart showing MICROTEL BVs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bergveld Piet 3
#2 Sprenkels Adrianus J 2
#3 Van Halteren Aart Zeger 1
#4 Smulders Adrianus J 1
#5 Sprenkels Adrianus Joseph 1
#6 Broersma Harmen 1
#7 Woelfel Hans 1
#8 Van Halteren Aart Z 1

Latest patents

Publication Filing date Title
NL9101563A Electroacoustic transducent of the electret type.
NL9101381A Electret structure, method for manufacturing it, and an electro-acoustic transducer of the zgn. electret type.
NL9002346A Forming perforating holes in a silicon@ wafer - by etching mask on both sides, forming holes of required size in one mask layer and larger holes in the other, and etching from both sides
NL8900613A Acoustic transducer.
NL8702589A Electro-acoustic transducent of the kind of electret, and a method for manufacturing such transducer.
US4567382A Electret transducer and a method for manufacturing an assembly of backplate, electret foil and diaphragm plate
GB2011761A Transducer of the electret type
NL7801117A Electroacoustic system with transducer and motor sections - has capactive corrective circuit forming parallel resonance and has audio frequency amplifier in output stage
US4160881A Electret transducers: acoustically transparent backplate of sintered conductive spheres and a thin electret coating; meshlike diaphragm spacing screen overlays apertured electret backplate with screen junctions overlaying the apertures
US4126769A Moving armature transducer with reinforced and pivoted diaphragm