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BLACK JOHN C

Overview
  • Total Patents
    30
About

BLACK JOHN C has a total of 30 patent applications. Its first patent ever was published in 1908. It filed its patents most often in United States. Its main competitors in its focus markets basic materials chemistry, chemical engineering and audio-visual technology are GRAY PROCESSES CORP, GYRO PROCESS CO and BEIJING CATECH TECH CO LTD.

Patent filings in countries

World map showing BLACK JOHN Cs patent filings in countries
# Country Total Patents
#1 United States 30

Patent filings per year

Chart showing BLACK JOHN Cs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Black John C 30
#2 Chappell Marvin L 3
#3 Weir James W 2
#4 Gard Earle W 2
#5 Matthews Gertrude F 1
#6 Coward John R 1
#7 Howes Raymond T 1
#8 Eaton James F 1
#9 Rial Wirt D 1

Latest patents

Publication Filing date Title
US2026120A Oil heater
US1975071A Hydrocarbon cracking reaction chamber
US1932441A Advertising and display sign
US1915592A Method of processing oils
US1935693A Method of processing viscous hydrocarbon oils
US1945508A Method of processing hydrocarbon oils
US1845739A Apparatus for heating and cracking oil
US1806037A Method of cracking oils
US1806036A Process for distilling and cracking petroleum oils
US1789510A Process of treating hydrocarbons
US1810068A Process of treating hydrocarbon oils
US1820371A Process of producing gasoline from high boiling hydrocarbon oils
US1673490A Apparatus for controlling pressure
US1859691A Method of heating and cracking oil
US1770098A Method of cracking oil
US1776061A Fractionating tower
US1771705A Method and apparatus for distilling oil
US1720070A Method of cracking oil in liquid phase
US1715980A Process of cracking oil
US1592329A Treatment of petroleum products