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CALGON CORP

Overview
  • Total Patents
    2,071
About

CALGON CORP has a total of 2,071 patent applications. Its first patent ever was published in 1959. It filed its patents most often in United States, Canada and EPO (European Patent Office). Its main competitors in its focus markets environmental technology, surface technology and coating and macromolecular chemistry and polymers are NALCO CO, BETZDEARBORN INC and ONDEO NALCO CO.

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Matz Gary F 104
#2 Hunter Wood E 69
#3 Boffardi Bennett P 67
#4 Gill Jasbir S 66
#5 Chen Shih-Ruey T 65
#6 Vaughan Craig W 48
#7 Loeffler Randy J 48
#8 Frederick Kevin W 41
#9 Cha Charles Y 40
#10 Schaper Raymond J 38

Latest patents

Publication Filing date Title
WO0174915A1 Ampholytic polymer dispersion composition and method of use
WO0163050A1 An organic coagulant composition for treating coated broke
AU2439801A The use of inorganic sols in the papermaking process
EP1233737A2 Modified starch solutions and their use in personal care
ZA200004802B Inorganic composition, process of preparation and method of use.
EP1196134A1 Water soluble polymer composition and method of use
AU6406000A Ampholyte polymer composition and method of use
AU5461900A Low molecular weight water soluble polymer composition and method of use
KR20010039579A Compositions and methods for cleaning and removing contaminants from hair
CA2335715A1 Novel composition of ferric chloride and a dialkyl diallyl ammonium polymer and process of preparing the same
US6184257B1 Composition of ferric chloride and a dialkyl diallyl ammonium polymer and process of preparing the same
US6562194B1 Method of creping paper webs
AU4027100A Rust and scale removal composition and process
US6277242B1 Creping adhesive containing an admixture of PAE resins
AU2205900A Corrosion inhibitor compositions and methods to control metal corrosion in brinesystems
CN1318121A Acid colloid in microparticle system used in papermaking
AU5913399A Silica-acid colloid blend in a microparticle system used in papermaking
EP1115370A2 Conditioning shampoo compositions
US6414080B1 Inverse emulsion polymer and production thereof
BR9909735A Composition, mixing, process for producing a reaction product, process for treating a solution