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PITTSBURGH MIDWAY COAL MINING

Overview
  • Total Patents
    144
About

PITTSBURGH MIDWAY COAL MINING has a total of 144 patent applications. Its first patent ever was published in 1943. It filed its patents most often in Israel, Poland and South Africa. Its main competitors in its focus markets basic materials chemistry, machines and engines, pumps and turbines are OCON ERNEST A, CULLEN MARK and GASOLINE PROD CO INC.

Patent filings per year

Chart showing PITTSBURGH MIDWAY COAL MININGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wright Charles H 14
#2 Schmalzer David K 12
#3 Naylor Joseph D 12
#4 Ackerman Carl D 12
#5 Anderson Raymond P 11
#6 Schmid Bruce K 9
#7 Moon William G 8
#8 Anderson Raymond Paul 8
#9 Wright Charles Hubert 8
#10 Carr Norman L 7

Latest patents

Publication Filing date Title
GB2114595A Coal-solvent slurries
GB2114591A Method for coal feed slurry preparation
JPS58129092A Coal liquefaction
JPS58129091A Coal liquefaction
US4457826A Prevention of deleterious deposits in a coal liquefaction system
US4422927A Process for removing polymer-forming impurities from naphtha fraction
IL64787D0 Coal liquefaction process employing direct slurry recycle
IL64772D0 Method for consolidating src-1 product fines and the product produced thereby
US4424108A Process for heating coal-oil slurries
IL64729D0 Process for upgrading coal derived liquids
IL64696D0 Method and system for separating coal liquefaction products from mineral residue
WO8300370A1 Apparatus and method for let down of a high pressure abrasive slurry
IL64655D0 Method for installing filter cloth on rotary filter drum
IL64657D0 Modified extruder with backflow prevention
IL64656D0 Chopper-mixer
AU8087382A Apparatus and method for let down of a high pressure abrasiveslurry
IL64640D0 Method and apparatus for the preparation of a slurry containing pulverized coal
IL64620D0 Thermally efficient coal liquefactiongasification process for production of solvent refined coal
IL64567D0 Process for filtration of solvent refined coal slurries
IL64566D0 Process for filtration of solvent refined coal slurries