Patents by Inventor Jack T. McCown

Jack T. McCown has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Heavy duty liquid detergent compositions containing non-proteolytic enzymes comprising capsules comprising proteolytic enzyme and composite polymer
    Patent number: 5281356
    Abstract: The present invention relates to heavy duty liquid compositions containing non-proteolytic enzyme or enzymes and comprising (a) a capsule which comprises a proteolytic enzyme and (b) a composite polymer which in turn comprises a hydrophilic portion and hydrophobic polymer core particles.
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: January 25, 1994
    Assignee: Lever Brothers Company
    Inventors: Liang S. Tsaur, Michael P. Aronson, Leslie J. Morgan, John F. Hessel, Jack T. McCown, John L. Gormley
  • Heavy duty liquid detergent compositions containing a capsule which comprises a component subject to degradation and a composite polymer
    Patent number: 5281355
    Abstract: The present invention relates to a heavy duty liquid compositions comprising (a) a capsule comprising a component subject to degradative attach; and (b) a composite polymer which in turn comprises a hydrophilic portion and hydrophobic polymer core particles.
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: January 25, 1994
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Liang S. Tsaur, Michael P. Aronson, Leslie J. Morgan, John F. Hessel, Jack T. McCown
  • Protease containing heavy duty liquid detergent compositions comprising capsules comprising non-proteolytic enzyme and composite polymer
    Patent number: 5281357
    Abstract: The present invention relates to a protease containing heavy duty liquid composition comprising(a) a capsule which comprises a non-proteolytic enzyme; and(b) a composite polymer which in turn comprises a hydrophilic portion and hydrophobic polymer core particles.
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: January 25, 1994
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Leslie J. Morgan, Michael P. Aronson, Liang S. Tsaur, John F. Hessel, Jack T. McCown
  • Stabilization of peroxygen bleach in enzyme-containing heavy duty liquids
    Patent number: 5264142
    Abstract: The present application provides heavy duty liquids in which enzyme stability is maintained without sacrificing peroxygen bleach stability. In one embodiment of the invention stability is provided using protein having a MW of from about 1,000 to about under 50,000. In a second embodiment, stability is provided using a carboxylic acid selected from the group consisting of acetic acid, propionic acid, adipic acid and salts thereof.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: November 23, 1993
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: John F. Hessel, Daniel J. Kuzmenka, Johannes C. Van De Pas, Cornelis B. Donker, Jack T. McCown
  • Enzymatic liquid detergent composition
    Patent number: 5089163
    Abstract: The invention relates to the stabilization of mixtures of proteolytic and lipolytic enzymes in a liquid medium such as a liquid detergent composition. By inclusion therein of a stabilizing system comprising a polyol and a boron compound which are capable of reacting with each other whereby the polyol has a first binding constant with the boron compound of at least 500 l/mole and a second binding constant of at least 1,000 l.sup.2 /mole.sup.2, the stability of the lipase in the presence of the protease is significantly improved.The lipase is preferably obtained from Humicola lanuginosa, and the stabilizing system preferably comprises a mixture of sorbitol and borax.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: February 18, 1992
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Michael P. Aronson, Martin S. Cardinali, Jack T. McCown
  • Stably suspended organic peroxy bleach in a structured aqueous liquid
    Patent number: 5073285
    Abstract: An aqueous based structured Heavy duty liquid detergent formulation is disclosed, which contains selected bleaches, surfactant combinations, borate polyol pH jump systems, and selected decoupling polymers.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: December 17, 1991
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Patricia Liberati, Jack T. McCown, Michael Aronson, Johannes C. van de Pas
  • Stably suspended organic peroxy bleach in a structured aqueous liquid
    Patent number: 4992194
    Abstract: An aqueous based structured heavy duty liquid detergent formulation is disclosed, which contains selected bleaches, surfactant combinations, borate polyol pH jump systems, and selected decoupling polymers.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: February 12, 1991
    Assignee: Lever Brothers Company, Division of Conopco Inc.
    Inventors: Patricia Liberati, Jack T. McCown, Michael Aronson, Johannes C. van de Pas
  • Stabilized enzymes liquid detergent composition containing lipase and protease
    Patent number: 4959179
    Abstract: The invention relates to the stabilization of mixtures of proteolytic and lipolytic enzymes in a liquid medium such as a liquid detergent composition. By inclusion therein of a stabilizing system comprising a polyol and a boron compound which are capable of reacting with each other whereby the polyol has a first binding constant with the boron compound of at least 500 l/mole and a second binding constant of at least 1,000 l.sup.2 /mole.sup.2, the stability of the lipase in the presence of the protease is significantly improved.The lipase is preferably obtained from Humicola lanuginosa, and the stabilizing system preferably comprises a mixture of sorbitol and borax.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: September 25, 1990
    Assignee: Lever Brothers Company
    Inventors: Michael P. Aronson, Martin S. Cardinali, Jack T. McCown