Learn more

PARSONS CO RALPH M

Overview
  • Total Patents
    258
About

PARSONS CO RALPH M has a total of 258 patent applications. Its first patent ever was published in 1921. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets materials and metallurgy, basic materials chemistry and chemical engineering are DUT PTY LTD, STARCHEM INC and BRAMEDA RESOURCES LTD.

Patent filings per year

Chart showing PARSONS CO RALPH Ms patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Beavon David K 30
#2 Beavon David Kent 22
#3 Vaughn George A 14
#4 Roszkowski Theodore R 11
#5 Parsons Ralph M 10
#6 Brocoff Jack 9
#7 White Gerald A 9
#8 Roszkowski Theodore Raymond 6
#9 Mackles Mark 6
#10 Browder Timothy J Jr 6

Latest patents

Publication Filing date Title
WO9636561A1 Catalysts and process for selective oxidation
US5194239A Oxygen-based noncatalytic sulfuric acid process
US4780305A Dual combustion oxygen-enriched claus sulfur plant
WO8605474A1 Selective absorption of hydrogene sulfide from gases which also contain carbon dioxide
US4483693A Reforming of hydrocarbons in the presence of sulfur
US4406873A Process for sulfur production
DE3040298A1 Sulphur prodn. by modified Claus process - using catalyst for selective oxidn. of hydrogen sulphide to sulphur di:oxide
CA1149136A Method for removing carbonyl sulfide in gas treating processes
CA1108598A Indirect gas to gas heat exchanger for use with a gas stream containing condensible corrosive constituents
US4279882A Process for sulfur production
US4233141A Process for removal of carbonyl sulfide in liquified hydrocarbon gases with absorption of acid gases
CA1090574A Hydrogen generation from flue gases
DE2739420A1 Reducing gas generator - in which gas produced by combustion of hydrocarbon fuel is mixed with industrial tail gas
CA1085616A Reducing gas generator
JPS5437924A Reductive gas generator
CA1090729A Process for the production of fuel values from carbonaceous materials
US4146580A Process for hydrogen sulfide production
GB1578150A Removal of the oxides of sulphur and/or nitrogen from the flue gases of power generation apparatus
GB1578149A Removal of the oxides of sulphur and/or nitrogen from the flue gases of power generation apparatus
JPS5380026A Electric power generating plant and improved method of fuel combustion therefor