Patents by Inventor Percy A. Jaquess

Percy A. Jaquess 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).

  • Patent number: 5707534
    Abstract: Tabletized ionene polymers, methods for their preparation and their use in water treatment is described. The tablet contains about 5 to about 60 percent by weight of an ionene polymer, about 40 to about 95 percent by weight of a salt carrier matrix, 0 to about 10 percent by weight of a disintegration rate regulator, and 0 to about 10 percent by weight of an anticaking agent. The tablets may be made by mixing an aqueous solution of an ionene polymer with a carrier matrix to form a moist mass, drying the moist mass to form granules, reducing the granule size to form a powder, and compressing the powder into a tablet. The tablets are useful in a wide variety of water treatment applications. Accordingly, the specification describes a method for controlling the growth of microorganisms in an aqueous system. Using the method, one treats an aqueous system with an ionene polymer in an amount effective to control the growth of at least one microorganism. The ionene polymer is contained in a tablet of the invention.
    Type: Grant
    Filed: July 10, 1995
    Date of Patent: January 13, 1998
    Assignee: Buckman Laboratories International, Inc.
    Inventors: L. Fernando Del Corral, Percy A. Jaquess, Wallace E. Puckett, Russell E. Fues
  • Patent number: 5681862
    Abstract: A method for controlling the growth of at least one microorganism in an aqueous system susceptible to the growth of said microorganism and in recognized need of said control comprising the step of adding to said aqueous system an ionene polymer in an amount effective to inhibit the growth at least one microorganism selected from Campylobacter spp., Mycobacterium spp., Shigella spp., ribrio spp., Yersinia spp., Entamoeba spp., and poliovirus. The aqueous system is selected from potable water, sewage, and other nonmarine surface water. Methods for controlling the spread of the diseases cholera and polio are also disclosed.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: October 28, 1997
    Assignee: Buckman Laboratories International, Inc.
    Inventors: C. George Hollis, Percy A. Jaquess
  • Patent number: 5637308
    Abstract: Tabletized ionene polymers, methods for their preparation and their use in water treatment is described. The tablet contains about 5 to about 60 percent by weight of an ionene polymer, about 40 to about 95 percent by weight of a salt carrier matrix, 0 to about 10 percent by weight of a disintegration rate regulator, and 0 to about 10 percent by weight of an anticaking agent. The tablets may be made by mixing an aqueous solution of an ionene polymer with a carrier matrix to form a moist mass, drying the moist mass to form granules, reducing the granule size to form a powder, and compressing the powder into a tablet. The tablets are useful in a wide variety of water treatment applications. Accordingly, the specification describes a method for controlling the growth of microorganisms in an aqueous system. Using the method, one treats an aqueous system with an ionene polymer in an amount effective to control the growth of at least one microorganism. The ionene polymer is contained in a tablet of the invention.
    Type: Grant
    Filed: July 10, 1995
    Date of Patent: June 10, 1997
    Assignee: Buckman Laboratories International, Inc.
    Inventors: Fernando Del Corral, Percy A. Jaquess, Russel E. Fues, Wallace E. Puckett
  • Patent number: 5507952
    Abstract: An enzyme composition of matter is disclosed for reducing the amount of acylglycerol esters in water comprising a lipase enzyme, a non-ionic emulsifying agent, a water soluble organic acid preservative and a water soluble stabilizer. The lipase enzyme can be used in conjunction with other enzymes. The non-ionic emulsifying agent can comprise an alcohol ethoxylate, the water soluble organic acid preservative can comprise sorbic acid and the water soluble stabilizer can comprise glycerol. A method for treating water containing acylglycerol esters with the foregoing compositions is also disclosed.
    Type: Grant
    Filed: July 13, 1995
    Date of Patent: April 16, 1996
    Assignee: Buckman Laboratories International, Inc.
    Inventors: Percy Jaquess, Fernando Del Corral
  • Patent number: 5474701
    Abstract: An enzyme composition of matter is disclosed for reducing the amount of acylglycerol esters in water comprising a lipase enzyme, a non-ionic emulsifying agent, a water soluble organic acid preservative and a water soluble stabilizer. The lipase enzyme can be used in conjunction with other enzymes. The non-ionic emulsifying agent can comprise an alcohol ethoxylate, the water soluble organic acid preservative can comprise sorbic acid and the water soluble stabilizer can comprise glycerol. A method for treating water containing acylglycerol esters with the foregoing compositions is also disclosed.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: December 12, 1995
    Assignee: Buckman Laboratories International, Inc.
    Inventors: Percy Jaquess, Fernando D. Corral
  • Patent number: 5411666
    Abstract: A composition for and methods of removing biofilm and controlling its development in industrial water systems. The water in such systems is treated with a combination of at least two biologically produced enzymes and a surface active agent, preferably an anionic surfactant.
    Type: Grant
    Filed: March 22, 1994
    Date of Patent: May 2, 1995
    Assignee: Buckman Laboratories International, Inc.
    Inventors: C. George Hollis, John P. Terry, Percy A. Jaquess
  • Patent number: 5356800
    Abstract: A stabilizing formulation capable of enhancing the storage and shelf-life of liquid enzymatic compositions as well as acting as a dispersant aid for industrial process waters. Such stabilizing formulation contains at least one water-soluble coupling agent selected from a short chain alcohol and a short chain glycol, at least one of (i) a polyethoxylated alkyl diamine and (ii) an amine oxide, and water. The polyethoxylated alkyl diamine and/or amine oxide is present in an amount effective to stabilize one or more enzymes contained in a liquid enzymatic composition. A stabilized liquid enzymatic composition may contain one or more components of the stabilizing formulation and an enzyme.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: October 18, 1994
    Assignee: Buckman Laboratories International, Inc.
    Inventor: Percy A. Jaquess
  • Patent number: 5128100
    Abstract: A process for inhibiting the adhesion of bacterial cells to solid surfaces in aqueous systems and thus controlling biological fouling comprising adding a water-soluble ionene polymer to the aqueous systems in an amount ranging from about 0.5 ppm to about 50 ppm based on the weight of aqueous liquid in the system.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: July 7, 1992
    Assignee: Buckman Laboratories, Intl., Inc.
    Inventors: C. George Hollis, Percy A. Jaquess