Assignee
CALGON CORP
US312 patents
Top patents by PatentIndex Score
US4640793AFeb 3, 1987
Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers
CALGON CORP201 citations98
US4936987AJun 26, 1990
Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers
CALGON CORP144 citations97
US4166894ASep 4, 1979
Functional ionene compositions and their use
CALGON CORP284 citations97
US6110451AAug 29, 2000
Synergistic combination of cationic and ampholytic polymers for cleansing and/or conditioning keratin based substrates
CALGON CORP158 citations96
US5338477AAug 16, 1994
Polyether polyamino methylene phosphonates for high pH scale control
CALGON CORP56 citations96
US5047078ASep 10, 1991
Method and compositions for increasing plant growth
CALGON CORP63 citations96
US4015991AApr 5, 1977
Low fluid loss cementing compositions containing hydrolyzed acrylamide/2-acrylamido-2-methylpropane sulfonic acid derivative copolymers and their use
CALGON CORP160 citations96
US5609862AMar 11, 1997
Ampholyte teropolymers providing superior conditioning properties in shampoos and other hair care products
CALGON CORP76 citations95
US5275809AJan 4, 1994
Ampholyte terpolymers providing superior conditioning properties in shampoos and other hair care products
CALGON CORP74 citations95
US4800039AJan 24, 1989
Flocculation of suspended solids from aqueous solutions
CALGON CORP43 citations95
US4650598AMar 17, 1987
Method and emulsions for the control of dust
CALGON CORP98 citations95
US4158643AJun 19, 1979
Catalytic carbon for oxidation of carbon monoxide in the presence of sulfur dioxide
CALGON CORP63 citations95
US4018702AApr 19, 1977
Corrosion inhibition with amine adducts of maleic anhydride polymers
CALGON CORP56 citations95
US3965027AJun 22, 1976
Scale inhibition and corrosion inhibition
CALGON CORP114 citations95
US3964921AJun 22, 1976
Well cementing composition having improved flow properties, containing phosphonobutane tricarboxylic acid, and method of use
CALGON CORP62 citations95
US6039965AMar 21, 2000
Surfanctants for reducing bacterial adhesion onto surfaces
CALGON CORP63 citations94
US5879670AMar 9, 1999
Ampholyte polymers for use in personal care products
CALGON CORP42 citations94
US4772462ASep 20, 1988
Hair products containing dimethyl diallyl ammonium chloride/acrylic acid-type polymers
CALGON CORP108 citations94
US4618448AOct 21, 1986
Carboxylic/sulfonic/polyalkylene oxide polymer for use as scale, corrosion, and iron oxide deposit control
CALGON CORP67 citations94
US3943060AMar 9, 1976
Friction reducing
CALGON CORP83 citations94
US3936408AFeb 3, 1976
Well cementing composition having improved flow properties containing a polyamido-sulfonic additive
CALGON CORP48 citations94
US5087376AFeb 11, 1992
Multifunctional scale inhibitors
CALGON CORP62 citations93
US4933090AJun 12, 1990
Method for controlling silica/silicate deposition in aqueous systems using phosphonates and carboxylic/sulfonic polymers
CALGON CORP55 citations93
US4666964AMay 19, 1987
Method for producing free-flowing water-soluble polymer gels
CALGON CORP25 citations93
US4655815AApr 7, 1987
Admixtures of 2-bromo-2-bromomethylglutaronitrile and a formaldehyde donor
CALGON CORP59 citations93
US4650591AMar 17, 1987
Acrylic acid/2-acrylamido-2-methylpropylsulfonic acid/2-acrylamido-2-methylpropyl phosphonic acid polymers as scale and corrosion inhibitors
CALGON CORP69 citations93
US4075136AFeb 21, 1978
Functional ionene compositions and their use
CALGON CORP318 citations93
US6691715B2Feb 17, 2004
Water soluble polymer composition and method of use
CALGON CORP38 citations92
US6310024B1Oct 30, 2001
Rust and scale removal composition and process
CALGON CORP45 citations92
US6277242B1Aug 21, 2001
Creping adhesive containing an admixture of PAE resins
CALGON CORP57 citations92
US6126837AOct 3, 2000
Method for removing suspended particles using mannich-derived polyethers
CALGON CORP22 citations92
US5647956AJul 15, 1997
Cellulosic, modified lignin and cationic polymer composition and process for making improved paper or paperboard
CALGON CORP25 citations92
US5567277AOct 22, 1996
Cellulosic, modified lignin and cationic polymer composition and process for making improved paper or paperboard
CALGON CORP33 citations92
US5378368AJan 3, 1995
Controlling silica/silicate deposition using polyether polyamino methylene phosphonates
CALGON CORP27 citations92
US5358642AOct 25, 1994
Polyether polyamino methylene using phosphonates method for high pH scale control
CALGON CORP26 citations92
US5330656AJul 19, 1994
Polysalt compositions and the use thereof for treating an oil and water system
CALGON CORP27 citations92
US5296218AMar 22, 1994
Ampholyte terpolymers providing superior conditioning properties in shampoos and other hair care products
CALGON CORP43 citations92
US5288486AFeb 22, 1994
Alcohol-based antimicrobial compositions
CALGON CORP71 citations92
US5259974ANov 9, 1993
N,N-bis(phosphonomethyl)-2-amino-1-propanol, derivatives and corresponding lower alkyl ethers and N-oxides thereof for high PH scale control
CALGON CORP34 citations92
US5250189AOct 5, 1993
Method for removing paint solids from water-based paint systems using aluminum salts
CALGON CORP42 citations92
US5089349AFeb 18, 1992
Compositions and method for applying coatings to metallic surfaces
CALGON CORP30 citations92
US5068279ANov 26, 1991
Low free formaldehyde melamine-formaldehyde detackifier and method of using
CALGON CORP26 citations92
US4990261AFeb 5, 1991
Method for monitoring and/or controlling liquid-solid separation processes
CALGON CORP28 citations92
US4935149AJun 19, 1990
Low free formaldehyde melamine-formaldehyde detackifier and method of using
CALGON CORP28 citations92
US4726906AFeb 23, 1988
Polymers for use as filtration control aids in drilling muds
CALGON CORP43 citations92
US4652623AMar 24, 1987
Polymers for use as filtration control aids in drilling muds
CALGON CORP44 citations92
US4575425AMar 11, 1986
Process for controlling calcium oxalate scale over a wide pH range
CALGON CORP65 citations92
US4536292AAug 20, 1985
Carboxylic/sulfonic/quaternary ammonium polymers for use as scale and corrosion inhibitors
CALGON CORP36 citations92
US4533708AAug 6, 1985
Polyampholyte polymer
CALGON CORP31 citations92
US4510059AApr 9, 1985
Carboxylic functional polyampholytes as silica polymerization retardants and dispersants
CALGON CORP30 citations92
Showing the top 50 of 312 patents by PatentIndex Score.