P

Inventor

CRUMP DRUCE K

US43 patents
⚠️ This page may combine multiple inventors who share the name “CRUMP DRUCE K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DOW CHEMICAL CO

36 patents
US5733858AMar 31, 1998

Succinic acid derivative degradable chelants, uses and compositions thererof

DOW CHEMICAL CO23 citations93
US5447575ASep 5, 1995

Degradable chelants having sulfonate groups, uses and compositions thereof

DOW CHEMICAL CO30 citations93
US5208369AMay 4, 1993

Degradable chelants having sulfonate groups, uses and compositions thereof

DOW CHEMICAL CO21 citations93
US5972868AOct 26, 1999

Method for controlling alkaline earth and transition metal scaling with 2-hydroxyethyl iminodiacetic acid

DOW CHEMICAL CO33 citations92
US5481018AJan 2, 1996

Amino nitrile intermediate for the preparation of alanine diacetic acid

DOW CHEMICAL CO31 citations92
US4560548ADec 24, 1985

Bone seeking Tc-99m complexes of phosphonate derivatives of bis(aminoalkyl)piperazine

DOW CHEMICAL CO44 citations92
US4872996AOct 10, 1989

Use of aminophosphonic acids to inhibit scale formation and corrosion caused by manganese in water systems

DOW CHEMICAL CO34 citations91
US5569443AOct 29, 1996

Method for removing hydrogen sulfide from a gas using polyamino disuccinic acid

DOW CHEMICAL CO17 citations82
US5389594AFeb 14, 1995

Degradable chelants having sulfonate groups, uses and compositions thereof

DOW CHEMICAL CO17 citations82
US4468252AAug 28, 1984

Set retarding additives for cement from aminomethylenephosphonic acid derivatives

DOW CHEMICAL CO20 citations82
US4466836AAug 21, 1984

Set retarding compounds for use in cement slurries

DOW CHEMICAL CO19 citations82
US4799995AJan 24, 1989

Scale inhibition formulations for kraft digesters

DOW CHEMICAL CO22 citations79
US5846925ADec 8, 1998

Succinic acid derivative degradable chelants, uses and compositions thereof

DOW CHEMICAL CO12 citations74
US5817613AOct 6, 1998

Amino nitrile intermediate for the preparation of 2-hydroxyethyl iminodiacetic acid

DOW CHEMICAL CO13 citations74
US5258141ANov 2, 1993

Degradable chelants having sulfonate groups, uses and compositions thereof

DOW CHEMICAL CO8 citations74
US5208363AMay 4, 1993

Preparation of aminonitriles

DOW CHEMICAL CO7 citations74
US4895600AJan 23, 1990

Asphalt compositions containing anti-stripping additives prepared from amines or polyamines and phosphonates

DOW CHEMICAL CO10 citations74
US4786329ANov 22, 1988

Asphalt compositions containing anti-stripping additives prepared from amines or polyamines and phosphonates

DOW CHEMICAL CO12 citations74
US4758635AJul 19, 1988

Polyamindoamine based metal ion control compound

DOW CHEMICAL CO15 citations74
US4680396AJul 14, 1987

Bis(aminoalkyl)piperazine derivatives and their use as metal ion control agents

DOW CHEMICAL CO8 citations74
US4500356AFeb 19, 1985

Methylenephosphonic acid derivatives of bis(aminoalkyl)piperazines as cement set retarding agents

DOW CHEMICAL CO15 citations74
US4500469AFeb 19, 1985

Metal ion control compounds based on norbornane

DOW CHEMICAL CO7 citations74
US4489203ADec 18, 1984

Polyumeric alkylene phosphoric acid piperazine derivatives as scale inhibitors

DOW CHEMICAL CO10 citations74
US4472200ASep 18, 1984

New additives for retarding setting of cement from methylenephosphonated aminohydrocarbylpiperazine-urea adducts

DOW CHEMICAL CO15 citations74
US4466835AAug 21, 1984

Cement compositions containing set retarders

DOW CHEMICAL CO12 citations74
US5098681AMar 24, 1992

Process for absorption of sulfur compounds from fluids

DOW CHEMICAL CO14 citations73
US4469663ASep 4, 1984

Scale control in flue gas desulfurization

DOW CHEMICAL CO13 citations69
US5726341AMar 10, 1998

Amine nitrile intermediate for the preparation of 2-hydroxyethyl iminodiacetic acid

DOW CHEMICAL CO3 citations63
US4770791ASep 13, 1988

Control of metal ions using bis(aminoalkyl) piperazine derivatives

DOW CHEMICAL CO6 citations63
US4568469AFeb 4, 1986

Use of methylene phosphonic acid compositions derived from aminohydrocarbyl piperazine-urea adducts to inhibit scale

DOW CHEMICAL CO2 citations63
US4540508ASep 10, 1985

Alkylene phosphonic acid scale inhibitor compositions

DOW CHEMICAL CO4 citations63
US4312815AJan 26, 1982

Preparation of a zinc chelate having improved stability

DOW CHEMICAL CO3 citations62
US6465690B1Oct 15, 2002

Process for the preparation of polyamino succinic acids and derivatives thereof

DOW CHEMICAL CO3 citations58
US5488130AJan 30, 1996

Amino nitrile intermediate for the preparation of 2-hydroxypropyl iminodiacetic acid

DOW CHEMICAL CO0 citations52
US4568468AFeb 4, 1986

Use of norbornane derived compounds as threshold agents

DOW CHEMICAL CO1 citations52
US4518777AMay 21, 1985

Methylene phosphonic acid scale inhibitor compositions derived from aminohydrocarcarbylpiperazine urea adducts

DOW CHEMICAL CO0 citations52

ISOTHERAPEUTICS GROUP LLC

3 patents

EASTMAN KODAK CO

2 patents

DOW GLOBAL TECHNOLOGIES LLC

1 patent

CRUMP DRUCE K

1 patent