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CITIES SERVICE RES & DEV CO

Overview
  • Total Patents
    334
About

CITIES SERVICE RES & DEV CO has a total of 334 patent applications. Its first patent ever was published in 1946. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets basic materials chemistry, organic fine chemistry and chemical engineering are TOTAL RAFFINAGE DISTRIBUTION, FABRICATION DES ESSENCES & PET and STANDARD CATALYTIC CO.

Patent filings in countries

World map showing CITIES SERVICE RES & DEV COs patent filings in countries

Patent filings per year

Chart showing CITIES SERVICE RES & DEV COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hughes William B 84
#2 Driesen Roger P Van 34
#3 Kerschner Paul M 22
#4 Greenwald Bertrand W 20
#5 Fallgatter Wayne S 10
#6 Mounce William R 8
#7 Stewart Norman C 8
#8 Rapp Lester M 8
#9 Fisher Everett B 7
#10 Mattix Emory D 7

Latest patents

Publication Filing date Title
US4053390A Start-up procedure for a residual oil processing unit
US4059502A Catalyst withdrawal
CA1016863A In situ production of bitumen from oil shale
US3972801A Oil shale retorting
US3915234A In situ production of hydrocarbon values from oil shale using H{HD 2{B S and CO{HD 2{B
DE2429767A1 Oil shale retorting process - with shale heated by contact with recycled heated spent shale
US3882941A In situ production of bitumen from oil shale
US3905892A Process for reduction of high sulfur residue
US3888761A H-oil process
US3830728A Hydrocracking and hydrodesulfurization process
US3772211A Process for semi-continuous regeneration of catalyst with wash liquid in a closed system
US3784462A Process and apparatus for oil shale retorting
US3708569A Burning unconverted h-oil residual
US3698876A Vapor liquid separation apparatus
RO63167A Process for the hydrogenation of petroleum heavy residues
SU629887A3 Method of hydraulic cracking of asphalt-containing petroleum raw material
US3645887A Heavy oil hydrogen treating process
US3630887A Residual oil hydrogen treating process
US3630687A Liquid drawoff apparatus
US3623974A Hydrotreating a heavy hydrocarbon oil in an ebullated catalyst zone and a fixed catalyst zone