Assignee
CALGON CORP
US·312 granted patents·9,023 citations·filing 1971–2002
Top patents by PatentIndex Score
312 records- 0198US4936987ASynergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymersCALGON CORP·Filed 1988·Granted Jun 26, 1990·144 cites·1 claims
- 0298US4640793ASynergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymersCALGON CORP·Filed 1985·Granted Feb 3, 1987·201 cites·6 claims
- 0398US4166894AFunctional ionene compositions and their useCALGON CORP·Filed 1977·Granted Sep 4, 1979·284 cites·1 claims
- 0498US4075136AFunctional ionene compositions and their useCALGON CORP·Filed 1976·Granted Feb 21, 1978·318 cites·3 claims
- 0597US4650598AMethod and emulsions for the control of dustCALGON CORP·Filed 1985·Granted Mar 17, 1987·98 cites·20 claims
- 0697US4015991ALow fluid loss cementing compositions containing hydrolyzed acrylamide/2-acrylamido-2-methylpropane sulfonic acid derivative copolymers and their useCALGON CORP·Filed 1976·Granted Apr 5, 1977·160 cites·3 claims
- 0797US3965027AScale inhibition and corrosion inhibitionCALGON CORP·Filed 1974·Granted Jun 22, 1976·114 cites·8 claims
- 0896US3943060AFriction reducingCALGON CORP·Filed 1974·Granted Mar 9, 1976·83 cites·4 claims
- 0995US3936408AWell cementing composition having improved flow properties containing a polyamido-sulfonic additiveCALGON CORP·Filed 1974·Granted Feb 3, 1976·48 cites·9 claims
- 1094US3972335AMentholated cigarette filterCALGON CORP·Filed 1975·Granted Aug 3, 1976·193 cites·13 claims
- 1194US3964921AWell cementing composition having improved flow properties, containing phosphonobutane tricarboxylic acid, and method of useCALGON CORP·Filed 1975·Granted Jun 22, 1976·62 cites·15 claims
- 1293US6110451ASynergistic combination of cationic and ampholytic polymers for cleansing and/or conditioning keratin based substratesCALGON CORP·Filed 1998·Granted Aug 29, 2000·158 cites·20 claims
- 1393US5047078AMethod and compositions for increasing plant growthCALGON CORP·Filed 1985·Granted Sep 10, 1991·63 cites·6 claims
- 1493US4158643ACatalytic carbon for oxidation of carbon monoxide in the presence of sulfur dioxideCALGON CORP·Filed 1977·Granted Jun 19, 1979·63 cites·8 claims
- 1593US4110521AContinuous polymerization apparatus and processCALGON CORP·Filed 1977·Granted Aug 29, 1978·67 cites·7 claims
- 1693US3968037AEmulsion polymerization of cationic monomersCALGON CORP·Filed 1974·Granted Jul 6, 1976·78 cites·1 claims
- 1792US4772462AHair products containing dimethyl diallyl ammonium chloride/acrylic acid-type polymersCALGON CORP·Filed 1986·Granted Sep 20, 1988·108 cites·8 claims
- 1892US4147681AStable, self-inverting water-in-oil emulsionsCALGON CORP·Filed 1977·Granted Apr 3, 1979·96 cites·1 claims
- 1992US4077930ASelf-inverting emulsions of dialkyldiallyl ammonium chloride polymers and copolymersCALGON CORP·Filed 1976·Granted Mar 7, 1978·89 cites·5 claims
- 2091US4655815AAdmixtures of 2-bromo-2-bromomethylglutaronitrile and a formaldehyde donorCALGON CORP·Filed 1985·Granted Apr 7, 1987·59 cites·9 claims
- 2191US4512774AResidual fuel oil conditioners containing metal salts in aqueous solutionCALGON CORP·Filed 1978·Granted Apr 23, 1985·45 cites·13 claims
- 2291US4014817AManufacture of activated carbon from sized coalCALGON CORP·Filed 1975·Granted Mar 29, 1977·46 cites·7 claims
- 2390US6691715B2Water soluble polymer composition and method of useCALGON CORP·Filed 2002·Granted Feb 17, 2004·38 cites·5 claims
- 2490US6310024B1Rust and scale removal composition and processCALGON CORP·Filed 2000·Granted Oct 30, 2001·45 cites·14 claims
- 2590US6277242B1Creping adhesive containing an admixture of PAE resinsCALGON CORP·Filed 2000·Granted Aug 21, 2001·57 cites·16 claims
- 2690US5087376AMultifunctional scale inhibitorsCALGON CORP·Filed 1990·Granted Feb 11, 1992·62 cites·7 claims
- 2790US4462914AMethod of controlling CorbiculaCALGON CORP·Filed 1983·Granted Jul 31, 1984·28 cites·2 claims
- 2890US4011909AMethod of using cementing composition having improved flow propertiesCALGON CORP·Filed 1976·Granted Mar 15, 1977·50 cites·10 claims
- 2990US3994852ALow fluid loss cementing compositions containing polyvinylpyrrolidone-polyacrylamide triblock polymers and their useCALGON CORP·Filed 1975·Granted Nov 30, 1976·46 cites·12 claims
- 3089US5192451AMethod for controlling zebra mussels in ship ballast tanksCALGON CORP·Filed 1991·Granted Mar 9, 1993·58 cites·9 claims
- 3189US4652623APolymers for use as filtration control aids in drilling mudsCALGON CORP·Filed 1984·Granted Mar 24, 1987·44 cites·3 claims
- 3288US4650591AAcrylic acid/2-acrylamido-2-methylpropylsulfonic acid/2-acrylamido-2-methylpropyl phosphonic acid polymers as scale and corrosion inhibitorsCALGON CORP·Filed 1985·Granted Mar 17, 1987·69 cites·6 claims
- 3388US4575425AProcess for controlling calcium oxalate scale over a wide pH rangeCALGON CORP·Filed 1984·Granted Mar 11, 1986·65 cites·3 claims
- 3488US4215096ARemoval of acidic contaminants from gas streams by caustic impregnated activated carbonCALGON CORP·Filed 1978·Granted Jul 29, 1980·50 cites·2 claims
- 3588US4018702ACorrosion inhibition with amine adducts of maleic anhydride polymersCALGON CORP·Filed 1976·Granted Apr 19, 1977·56 cites·19 claims
- 3687US6365140B1Modified starch solutions and their use in personal careCALGON CORP·Filed 2000·Granted Apr 2, 2002·42 cites·18 claims
- 3787US5259974AN,N-bis(phosphonomethyl)-2-amino-1-propanol, derivatives and corresponding lower alkyl ethers and N-oxides thereof for high PH scale controlCALGON CORP·Filed 1992·Granted Nov 9, 1993·34 cites·8 claims
- 3887US4618448ACarboxylic/sulfonic/polyalkylene oxide polymer for use as scale, corrosion, and iron oxide deposit controlCALGON CORP·Filed 1985·Granted Oct 21, 1986·67 cites·9 claims
- 3986US6482776B1Ampholyte polymer composition and method of useCALGON CORP·Filed 2000·Granted Nov 19, 2002·30 cites·9 claims
- 4086US6039965ASurfanctants for reducing bacterial adhesion onto surfacesCALGON CORP·Filed 1997·Granted Mar 21, 2000·63 cites·21 claims
- 4186US5879670AAmpholyte polymers for use in personal care productsCALGON CORP·Filed 1997·Granted Mar 9, 1999·42 cites·4 claims
- 4286US5746947AAlkylbenzotriazole compositions and the use thereof as copper and copper alloy corrosion inhibitorsCALGON CORP·Filed 1990·Granted May 5, 1998·38 cites·18 claims
- 4386US5609862AAmpholyte teropolymers providing superior conditioning properties in shampoos and other hair care productsCALGON CORP·Filed 1993·Granted Mar 11, 1997·76 cites·19 claims
- 4486US5338541ADual cationic terpolymers providing superior conditioning properties in hair, skin and nail care productsCALGON CORP·Filed 1992·Granted Aug 16, 1994·72 cites·8 claims
- 4586US5275809AAmpholyte terpolymers providing superior conditioning properties in shampoos and other hair care productsCALGON CORP·Filed 1992·Granted Jan 4, 1994·74 cites·15 claims
- 4686US4895703ATrihydroxybenzene boiler corrosion inhibitor compositions and methodCALGON CORP·Filed 1988·Granted Jan 23, 1990·44 cites·2 claims
- 4786US4798683AMethod for controlling corrosion using molybdate compositionsCALGON CORP·Filed 1988·Granted Jan 17, 1989·32 cites·2 claims
- 4886US4536292ACarboxylic/sulfonic/quaternary ammonium polymers for use as scale and corrosion inhibitorsCALGON CORP·Filed 1984·Granted Aug 20, 1985·36 cites·2 claims
- 4986US4120815APolymeric demulsifiersCALGON CORP·Filed 1977·Granted Oct 17, 1978·63 cites·1 claims
- 5086US3956164AChelating agentsCALGON CORP·Filed 1974·Granted May 11, 1976·25 cites·8 claims
Showing the top 50 of 312 patent records by PatentIndex Score.
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