Inventor

PERA JOHN D

28 patents

Patents

28 patents

US4778813AOct 18, 1988

Polymeric quaternary ammonium compounds, their preparation and use

BUCKMAN LABOR INC86 citations95

US4506081AMar 19, 1985

Polymeric quaternary ammonium compounds and their uses

BUCKMAN LABOR INC79 citations95

US4250269AFeb 10, 1981

Water-soluble mixtures of quaternary ammonium polymers, nonionic and/or cationic vinyl-addition polymers, and nonionic and/or cationic surfactants

BUCKMAN LABOR INC51 citations93

US5051124ASep 24, 1991

Water-soluble dispersions of high molecular water-soluble polymers containing a surfactant and a water-soluble organic carrier which is a hydroxy compound containing repeating alkylene oxide units

BUCKMAN LABOR INC42 citations92

US4054542AOct 18, 1977

Amine-epichlorohydrin polymeric compositions

BUCKMAN LABOR INC54 citations90

US4293559AOct 6, 1981

Slime control compositions and methods of using the same

BUCKMAN LABOR INC27 citations80

US4163733AAug 7, 1979

Synergistic compositions for corrosion and scale control

BUCKMAN LABOR INC19 citations80

US4285765AAug 25, 1981

Slime control compositions and methods of using the same

BUCKMAN LABOR INC20 citations79

US5061797AOct 29, 1991

1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds

BUCKMAN LABOR INC4 citations73

US4920107AApr 24, 1990

1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds, a method for preparing these compounds, and their use in the control of microorganisms in aqueous systems

BUCKMAN LABOR INC7 citations73

US4505831AMar 19, 1985

Method of preservation of aqueous systems by addition to said systems of quaternary ammonium salts of hexamethylenetetramine

BUCKMAN LABOR INC15 citations73

US4157364AJun 5, 1979

Process for preparing dimethylaminomethylenebis(phosphonic acid)

BUCKMAN LABOR INC11 citations72

US3959328AMay 25, 1976

Halogenated propyl esters of cyanodithioimidocarbonic acid

BUCKMAN LABOR INC10 citations72

US3976495AAug 24, 1976

Methods of inhibiting the growth and proliferation of fungi using 3',5'-dihalo-4'-hydroxyacetophenone

BUCKMAN LABOR INC13 citations69

US5066334ANov 19, 1991

Fungicidal and corrosion inhibiting paint pigments

BUCKMAN LABOR INC7 citations63

US5424007AJun 13, 1995

1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds, a method for preparing these compounds, their use in the control of microorganisms in aqueous systems, and their use in the inhibition of corrosion

BUCKMAN LABOR INC2 citations62

US5356548AOct 18, 1994

1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds, a method for preparing these compounds, their use in the control of microorganisms in aqueous systems, and their use in the inhibition of corrosion

BUCKMAN LABOR INC2 citations62

US5245031ASep 14, 1993

1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds, a method for preparing these compounds, their use in the control of microorganisms in aqueous systems, and their use in the inhibition of corrosion

BUCKMAN LABOR INC2 citations62

US4851532AJul 25, 1989

Ionene polymeric compositions, their preparation and use

BUCKMAN LABOR INC3 citations62

US3973034AAug 3, 1976

Certain stabilized dithiocarbomate pesticidal compositions and methods of using same

BUCKMAN LABOR INC6 citations62

US4374040AFeb 15, 1983

Aminoalkylenephosphonic acids and salts thereof and their use in aqueous systems

BUCKMAN LABOR INC5 citations61

US4243524AJan 6, 1981

Aminoalkylenephosphonic acids and salts thereof and their use in aqueous systems

BUCKMAN LABOR INC4 citations61

US4181806AJan 1, 1980

Aminoalkylenephosphonic acids and salts thereof and their use in aqueous systems

BUCKMAN LABOR INC5 citations61

US3933472AJan 20, 1976

Substituted alkylaryl ketones and methods of use as herbicides

BUCKMAN LABOR INC5 citations60

US5073638ADec 17, 1991

Process for the production of 2-thiocyanomethylthiobenzothiazole

BUCKMAN LABOR INC4 citations51

PERA JOHN D

Patents

Polymeric quaternary ammonium compounds, their preparation and use

Polymeric quaternary ammonium compounds and their uses

Water-soluble mixtures of quaternary ammonium polymers, nonionic and/or cationic vinyl-addition polymers, and nonionic and/or cationic surfactants

Microbicidal compositions of dimethylamine-epichlorohydrin amines

Ionene polymeric compositions, their preparation and use

Polymeric quaternary ammonium compounds and their uses

Water-soluble dispersions of high molecular water-soluble polymers containing a surfactant and a water-soluble organic carrier which is a hydroxy compound containing repeating alkylene oxide units

Amine-epichlorohydrin polymeric compositions

Slime control compositions and methods of using the same

Synergistic compositions for corrosion and scale control

Slime control compositions and methods of using the same

1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds

1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds, a method for preparing these compounds, and their use in the control of microorganisms in aqueous systems

Method of preservation of aqueous systems by addition to said systems of quaternary ammonium salts of hexamethylenetetramine

Process for preparing dimethylaminomethylenebis(phosphonic acid)

Halogenated propyl esters of cyanodithioimidocarbonic acid

Methods of inhibiting the growth and proliferation of fungi using 3&#39;,5&#39;-dihalo-4&#39;-hydroxyacetophenone

Fungicidal and corrosion inhibiting paint pigments

1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds, a method for preparing these compounds, their use in the control of microorganisms in aqueous systems, and their use in the inhibition of corrosion

1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds, a method for preparing these compounds, their use in the control of microorganisms in aqueous systems, and their use in the inhibition of corrosion

1-methyl-3,5,7-triaza-1-azoniatricyclodecane compounds, a method for preparing these compounds, their use in the control of microorganisms in aqueous systems, and their use in the inhibition of corrosion

Ionene polymeric compositions, their preparation and use

Certain stabilized dithiocarbomate pesticidal compositions and methods of using same

Aminoalkylenephosphonic acids and salts thereof and their use in aqueous systems

Aminoalkylenephosphonic acids and salts thereof and their use in aqueous systems

Aminoalkylenephosphonic acids and salts thereof and their use in aqueous systems

Substituted alkylaryl ketones and methods of use as herbicides

Process for the production of 2-thiocyanomethylthiobenzothiazole

Methods of inhibiting the growth and proliferation of fungi using 3',5'-dihalo-4'-hydroxyacetophenone