Patents by Inventor Paul James Davis

Paul James Davis 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: 6596679
    Abstract: There is provided an enzymatic detergent composition comprising a surfactant, a cofactor-dependent oxidoreductase and an antibody or antibody fragment which is directed at one or more surface amino acid residues of said oxidoreductase, characterised in that the molar ratio between said antibody or antibody fragment and said oxidoreductase is less than 1.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: July 22, 2003
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Paul James Davis, Cornelis Paul van der Logt, Neil James Parry
  • Publication number: 20020155972
    Abstract: Detergent composition comprising fusion protein comprising a cellulose binding domain and a domain having a high binding affinity for another ligand. Preferably, the domain having a high binding affinity is directed at a Benefit Agent.
    Type: Application
    Filed: November 29, 2001
    Publication date: October 24, 2002
    Applicant: Unilever Home and Personal Care USA, Division of Conopco, Inc.
    Inventors: Paul James Davis, Neil James Parry
  • Patent number: 6406920
    Abstract: A process for carrying out a specific binding assay (for example an immunoassay) in which (a) a sample under assay, possibly containing a substance being tested for, is reacted with (b) a specific binding partner for the substance being tested for, immobilised on a solid support, and (c) a specific binding partner for the substance being tested for which is conjugated to a detectable marker, thereby to form a complex by reaction between whatever quantities are present of the substance being tested for with reagents (b) and (c), in which the marker is immobilised to the support via the substance being tested for, and is detected or assayed as an index of the quantity present in the sample (a) of any of the substance being tested for; characterised in that reaction ingredients (a), (b) and (c) are all mixed in a single step for reaction in a single reaction liquid, and competitive interference between the binding reactions of the substance being tested for and reagents (b) and (c) is avoided either by use of an
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: June 18, 2002
    Assignee: Inverness Medical Switzerland GmbH
    Inventors: Paul James Davis, Philip Porter
  • Patent number: 6352862
    Abstract: An analytical test device incorporating a dry porous carrier to which a liquid sample, eg. urine, suspected of containing an analyte such as HCG or LH can be applied indirectly, the device also incorporating a labelled specific binding reagent which is freely mobile in the porous carrier when in the moist state, and an unlabelled specific binding reagent which is permanently immobilised in a detection zone on the carrier material, the labelled and unlabelled specific binding reagents being capable of participating in either a sandwich reaction or a competition reaction in the presence of the analyte, in which prior to the application to the device of a liquid sample suspected of containing the analyte, the labelled specific binding reagent is retained in the dry state in a macroporous body, eg.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: March 5, 2002
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Paul James Davis, Michael Evans Prior, Keith May
  • Publication number: 20010044397
    Abstract: There is provided a bleaching enzyme capable of generating a bleaching chemical and having a high binding affinity for non-colored compounds present in stains on fabrics, said non-colored compounds having a molecular weight of at least 100, preferably of at least 1,000 and more preferably of at least 5,000. Furthermore, there is provided an enzymatic bleaching composition comprising said bleaching enzyme and a surfactant and a process for bleaching stains present of fabrics.
    Type: Application
    Filed: February 15, 2001
    Publication date: November 22, 2001
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Mark John Berry, Daniel Convents, Paul James Davis, Michael John Gidley, Cornelis Paul Van Der Logt
  • Publication number: 20010036911
    Abstract: Fusion protein comprising a cellulose binding domain and a domain having a high binding affinity for another ligand and detergent compositions comprising such fusion proteins.
    Type: Application
    Filed: December 20, 2000
    Publication date: November 1, 2001
    Inventors: Paul James Davis, Neil James Parry
  • Patent number: 6277806
    Abstract: There is provided a bleaching enzyme capable of generating a bleaching chemical and having a high binding affinity for non-colored compounds present in stains on fabrics, said non-colored compounds having a molecular weight of at least 100, preferably of at least 1,000 and more preferably of at least 5,000. Furthermore, there is provided an enzymatic bleaching composition comprising said bleaching enzyme and a surfactant and a process for bleaching stains present of fabrics.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: August 21, 2001
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Mark John Berry, Daniel Convents, Paul James Davis, Michael John Gidley, Cornelis Paul Van Der Logt
  • Patent number: 6274324
    Abstract: Small specific binding molecules, such as single variable domain antibodies (Dabs) and Fv fragments, can be coupled to solid plastics surfaces or to tracers such as enzymes by means of linkers comprising polypeptides containing from 5 to 20 amino acids and which are hydrophobic and/or contain at least one lysine residue. The coupling can be achieved without significant loss of specific binding activity. The combined Dab/linker or Fv/linker can be prepared by expression in genetically-modified organisms.
    Type: Grant
    Filed: April 12, 1994
    Date of Patent: August 14, 2001
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Paul James Davis, Martine Elisa Verhoeyen, Ronald Frank Jacobus De Winter
  • Patent number: 6225462
    Abstract: A polysaccharide conjugate comprises a polysaccharide with an attached entity having a molecular weight of at least 5000, the polysaccharide conjugate being capable of binding to cellulose. Preferred polysaccharides include tamarind seed xyloglucan, locust bean gum and enzyme modified guar. The attached entity is suitably a protein such as an enzyme, antibody or antibody fragment, or a particle possibly having a benefit agent such as a fragrance associated therewith. Because the polysaccharide conjugate binds to cellulose, which is present in cotton and other fabrics, paper, etc., binding of the conjugate to cellulose brings the attached entity into close proximity to a surface of or containing cellulose. The invention thus enables targeting of attached entities to such surfaces. The invention also provides a product incorporating the polysaccharide conjugate of the invention. The product is conveniently a laundry product such as a fabric washing product, e.g.
    Type: Grant
    Filed: January 12, 1999
    Date of Patent: May 1, 2001
    Assignee: Lever Brothers Company, a division of Conopco, Inc.
    Inventors: Mark John Berry, Paul James Davis, Michael John Gidley
  • Patent number: 6218350
    Abstract: There is provided a bleaching enzyme capable of generating a bleaching chemical and having a high binding affinity for stains present on fabrics. Furthermore, there is provided an enzymatic bleaching composition comprising the bleaching enzyme and a surfactant and a process for bleaching stains present of fabrics.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: April 17, 2001
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Thomas Stewart Beggs, Mark John Berry, Paul James Davis, Leon Gerardus J. Frenken, Cornelis Theodorus Verrips
  • Patent number: 5989830
    Abstract: A bispecific or bivalent double head antibody fragment, which is composed of a binding complex containing two polypeptide chains, whereby one polypeptide chain has two times a variable domain of a heavy chain (V.sub.H) in series and the other polypeptide chain has two times a variable domain of a light chain (V.sub.L) in series, and the binding complex contains two pairs of variable domains (V.sub.H -A//V.sub.L -A and V.sub.H -B//V.sub.L -B), wherein said double head antibody fragments have binfunctional antigen binding activity. A process for producing such an antibody fragment is disclosed. An immunoassay is also provided for, wherein the improvement is the inclusion of a bispecific or bivalent double head antibody fragment, which is composed of a binding complex containing two polypeptide chains, whereby one polypeptide chain has two times a variable domain of a heavy chain (V.sub.H) in series and the other polypeptide chain has two times a variable domain of a light chain (V.sub.
    Type: Grant
    Filed: July 31, 1997
    Date of Patent: November 23, 1999
    Assignee: Unilever Patent Holdings BV
    Inventors: Paul James Davis, Cornelis Paul Erik van der Logt, Martine Elisa Verhoeyen, Steve Wilson
  • Patent number: 5863765
    Abstract: Associative portions of antibody light and heavy chains, especially Fv fragments, are expressed in a transformed organism as a single peptide chain connected by a linking peptide. This is cleaved, possibly while peptide synthesis is incomplete, by an enzyme of the transformed organism which is expressing the single peptide. This ensures production of both chains in equal amounts, but produces them as separate chains which are free to associate and fold.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: January 26, 1999
    Assignee: Quest International BV
    Inventors: Mark John Berry, Paul James Davis, Cornelis Paul Van Der Logt, Garry Clark Whitelam
  • Patent number: 5657762
    Abstract: A method of monitoring the ovulation cycle of a female mammal, involving regular measurement of basal body temperature throughout a current ovulation cycle and occasional measurement of the level of at least one urinary component of significance in the cycle, the measurement of the urinary component being conducted at predetermined stages in the cycle to check that the level is consistent with a predicted level and thus confirm that the cycle as a whole is consistent with a prediction.
    Type: Grant
    Filed: December 17, 1990
    Date of Patent: August 19, 1997
    Assignee: Unilever Patent Holdings B.V.
    Inventors: John Coley, Paul James Davis, Philip Porter