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JOHNSON LAB INC

Overview
  • Total Patents
    282
About

JOHNSON LAB INC has a total of 282 patent applications. Its first patent ever was published in 1926. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets basic communication technologies, electrical machinery and energy and machines are FERROCART CORP OF AMERICA, CGS LAB INC and FERRISHIELD INC.

Patent filings in countries

World map showing JOHNSON LAB INCs patent filings in countries
# Country Total Patents
#1 United States 113
#2 Canada 62
#3 United Kingdom 58
#4 France 20
#5 Austria 8
#6 Switzerland 8
#7 Germany 8
#8 Denmark 4
#9 Spain 1

Patent filings per year

Chart showing JOHNSON LAB INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Polydoroff Wladimir J 36
#2 Schaper William A 31
#3 Jacob Frederick N 24
#4 Sinninger Dwight V 20
#5 Kirk Martin J 18
#6 Meinema Herbert E 14
#7 Alfred Crossley 11
#8 Neighbors Charles C 10
#9 Crossley Alfred 8
#10 Laboratories Incorporated John 7

Latest patents

Publication Filing date Title
US2008008675A1 Odor eliminating items and methods of use for hunting
US6440415B1 Odor eliminating items and methods of use for hunting
GB567468A Improvements in adjustable inductive coupling devices for radio circuits
US2368857A High-frequency inductance unit
GB562512A Improvements in or relating to multi-range high frequency systems
US2346584A Coupling device
US2363677A Tensioning device for winding machines
GB556774A Image suppression systems for radio receivers and the like
GB554568A Rustproof magnetic cores and method of producing the same
US2301934A Multirange high frequency system
GB552396A Improvements in or relating to coil winding machines
GB549092A Improvements in and relating to variable electrical inductance devices
US2289670A Oscillator tracking system
GB551853A Radio receivers
GB549367A Improvements in mounting device for adjustable inductors
US2285979A Image suppression system
GB549449A Improvements in high frequency core materials and cores and process for making said materials
US2335969A Loop antenna system
US2325279A Signal collecting system
GB548696A Signal collecting systems for radio receivers and the like