Patents Assigned to Sutton Laboratories, Inc.
  • Preservative compositions and uses thereof
    Patent number: 4980176
    Abstract: Compositions of matter containing a compound which is a member selected from the group consisting of hydroxymethylaminoacetic acids, its salts and lower alkyl esters, and one or more 3-isothiazolones are disclosed. The compositions provide synergistic microbial growth inhibition and biocidal activity in a wide range of substances requiring antimicrobial protection.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: December 25, 1990
    Assignee: Sutton Laboratories, Inc.
    Inventors: Philip A. Berke, William E. Rosen
  • Composition of matter containing imidazolidinyl urea and pyrithione and its derivatives
    Patent number: 4581351
    Abstract: A composition of matter comprising a major part of imidazolidinyl urea and a minor part of pyrithione and/or one or more derivatives of pyrithione is disclosed. The composition exhibits synergistic anti-microbial activity.
    Type: Grant
    Filed: May 15, 1984
    Date of Patent: April 8, 1986
    Assignee: Sutton Laboratories, Inc.
    Inventors: Philip A. Berke, William E. Rosen
  • Composition of matter containing cinnamaldehyde and parabens
    Patent number: 4525480
    Abstract: A composition of matter comprised of cinnamaldehyde and one or more esters of p-hydroxybenzoic acid, commonly known as parabens, is disclosed. The composition exhibits synergistic activity against a wide range of microorganisms which contaminate ingestible products.
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: June 25, 1985
    Assignee: Sutton Laboratories, Inc.
    Inventors: Philip A. Berke, William E. Rosen
  • N-(hydroxymethyl)-N-(1,3-dihydroxymethyl-2,5-dioxo-4-imidazolidinyl)-N'-( hydroxymethyl)urea
    Patent number: 4487939
    Abstract: N-(hydroxymethyl)-N-(1,3-dihydroxymethyl-2,5-dioxo-4-imidazolidinyl)-N'-(hy droxymethyl)urea prepared by the reaction of allantoin with formaldehyde is disclosed. The compound exhibits activity against bacteria, mold and yeast and hence is useful as a preservative for products susceptible to microbial contamination.
    Type: Grant
    Filed: December 10, 1980
    Date of Patent: December 11, 1984
    Assignee: Sutton Laboratories, Inc.
    Inventors: Philip A. Berke, William E. Rosen
  • Antimicrobial preservative compounds
    Patent number: 4459303
    Abstract: New antimicrobial agents are produced by the reaction of allantoin and glutaraldehyde. Substances which are subject to microbial spoilage are preserved by the addition of these products. They are effective against bacteria, yeasts and molds. Solutions of these new antimicrobial agents can also be used by themselves as disinfectants, sterilants, sanitizers, or embalming fluids.
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: July 10, 1984
    Assignee: Sutton Laboratories, Inc.
    Inventors: Philip A. Berke, William E. Rosen
  • Antimicrobial compounds
    Patent number: 4454133
    Abstract: Compounds formed by condensation reactions of glutaraldehyde with various nitrogen-containing compounds are disclosed. The compounds exhibit anti-microbial activity and are useful in a method of protecting products susceptible to microbial contamination.
    Type: Grant
    Filed: October 6, 1981
    Date of Patent: June 12, 1984
    Assignee: Sutton Laboratories, Inc.
    Inventors: Philip A. Berke, William E. Rosen
  • Preservative compositions
    Patent number: 4337269
    Abstract: A biocidal composition containing the product produced by the reaction of glycine, an alkyl substituted glycinate, or salts of these compounds with formaldehyde is disclosed. The composition effectively inhibits growth of bacteria, yeast and mold in a variety of substances susceptible to microbial contamination.
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: June 29, 1982
    Assignee: Sutton Laboratories, Inc.
    Inventors: Philip A. Berke, William E. Rosen
  • N-(Hydroxymethyl)-N-(1 ,3-dihydroxymethyl-2,5-dioxo-4-imidazolidinyl)-N'-(hydroxymethyl)urea used as a preservative agent
    Patent number: 4271176
    Abstract: N-(hydroxymethyl)-N-(1,3-dihydroxymethyl-2,5-dioxo-4-imidazolidinyl)-N'-(hy droxymethyl)urea prepared by the reaction of allantoin with formaldehyde is disclosed. The compound exhibits activity against bacteria, mold and yeast and hence is useful as a preservative for products susceptible to microbial contamination.
    Type: Grant
    Filed: August 28, 1979
    Date of Patent: June 2, 1981
    Assignee: Sutton Laboratories, Inc.
    Inventors: Philip A. Berke, William E. Rosen
  • Anti-microbial reaction product of #9 allantoin and formaldehyde
    Patent number: RE32848
    Abstract: .[.N-hydroxymethyl)-N-(1,3-dihydroxymethyl-2,5-dioxo-4-imidazolidinyl)-N'-( hydroxymethyl)urea.]. .Iadd.A reaction product .Iaddend.prepared by the reaction of allantoin and formaldehyde is disclosed. The .[.compound.]. .Iadd.reaction product .Iaddend.exhibits activity against bacteria, mold and yeast and hence is useful as a preservative for products susceptable to microbial contamination.
    Type: Grant
    Filed: December 10, 1986
    Date of Patent: January 31, 1989
    Assignee: Sutton Laboratories, Inc.
    Inventors: Philip A. Berke, William E. Rosen