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PETROLITE CORP

Overview
  • Total Patents
    2,227
About

PETROLITE CORP has a total of 2,227 patent applications. Its first patent ever was published in 1937. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets basic materials chemistry, chemical engineering and machines are NALCO EXXON ENERGY CHEM LP, DORF KETAL CHEMICALS I PRIVATE and DORF KETAL CHEMICALS I PRIVATE LTD.

Patent filings per year

Chart showing PETROLITE CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 De Groote Melvin 739
#2 Bernhard Keiser 333
#3 Kwan-Ting Shen 99
#4 Redmore Derek 90
#5 Quinlan Patrick M 83
#6 Blair Jr Charles M 76
#7 Oude Alink Bernardus A 53
#8 Wirtel Arthur F 51
#9 Thompson Neil E S 46
#10 Waterman Logan C 45

Latest patents

Publication Filing date Title
WO9745503A1 Control of naphthenic acid corrosion with thiophosphorus compounds
US5672183A Anti-static additives for hydrocarbons
US5637223A Method of removing water soluble organics from oil process water
EP0732589A2 Methods for testing the fouling tendency of FCC slurries
US5634971A Process for dispersing pigments with polyoxyalkylated ethers
US5582792A Corrosion inhibition by ethoxylated fatty amine salts of maleated unsaturated acids
CA2156234A1 Dynamic fouling test procedure
US5567212A Use of olefinic imines to scavenge sulfur species
US5480860A Methods for reducing sulfides in sewage gas
CA2117737A1 Biodegradable Corrosion Inhibitors of Low Toxicity
CA2133270A1 Quaternary Ammonium Hydroxides as Mercaptan Scavengers
US5504063A Asphaltene removal composition and method
US5538723A Method for suppressing the viscosity of bioinsecticide slurries and related slurries
US5385616A Corrosion inhibition by formation of iron carboxylate
US5440059A Clay-catalyzed synthesis of aryl-substituted fatty acids and fatty esters and compositions related thereto
US5376170A Additive dispersions containing ethoxylated alcohols
US5456767A Corrosion inhibition with bilayer-forming surfactants
US5364532A Method of removing water soluble organics from oil process water
US5414039A Repulpable hot melt adhesive for packaging materials containing an ethylene vinyl acetate copolymer having 40-60 weight percent of vinyl acetate units, a tackifier and a high molecular weight oxygen-containing polymer
US5436287A Repulpable laminating adhesive containing an ethylene vinyl acetate copolymer having 40-60 weight percent of vinyl acetate units, an oxygen-containing comound, a tackifier and a wax