Patents by Inventor John K. Baird

John K. Baird 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).

  • PHB-free gellan gum broth
    Patent number: 5300429
    Abstract: P. elodea mutants are produced which produce gellan gum broth which contains no detectable amount of poly-.beta.-hydroxy-butyrate (PHB).
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: April 5, 1994
    Assignee: Merck & Co., Inc.
    Inventors: John K. Baird, Joseph M. Cleary
  • Dispersible xanthan gum
    Patent number: 4654086
    Abstract: Xanthan gum is treated with surfactants. This treatment produces a readily dispersible xanthan gum.
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: March 31, 1987
    Assignee: Merck & Co., Inc.
    Inventors: John K. Baird, Paul A. Sandford
  • Non-heated gellan gum gels
    Patent number: 4563366
    Abstract: Gellan gum food gels are formed without first going through a heating and cooling cycle.
    Type: Grant
    Filed: December 17, 1984
    Date of Patent: January 7, 1986
    Assignee: Merck & Co., Inc.
    Inventors: John K. Baird, Jaewon L. Shim
  • Non-heated gellan gum gels
    Patent number: 4503084
    Abstract: Gellan gum gels are formed without first going through a heating and cooling cycle.
    Type: Grant
    Filed: May 31, 1983
    Date of Patent: March 5, 1985
    Assignee: Merck & Co., Inc.
    Inventors: John K. Baird, Jaewon L. Shim
  • Dispersible xanthan gum blends
    Patent number: 4363669
    Abstract: Glyoxal treated xanthan gum is dry blended with non-dispersible plant gums. These blends exhibit excellent dispersibility in water.
    Type: Grant
    Filed: December 5, 1979
    Date of Patent: December 14, 1982
    Assignee: Merck & Co., Inc.
    Inventors: Ian W. Cottrell, Paul A. Sandford, John K. Baird
  • Dispersible xanthan gum composite
    Patent number: 4357260
    Abstract: Fumed silica is added to xanthan gum beer prior to normal isolation procedures. The xanthan gum obtained from this beer is characterized in that it is more readily dispersible than xanthan gum from regular beer. This dispersible xanthan gum does not require vigorous agitation to attain homogenous, lump-free solutions.
    Type: Grant
    Filed: May 8, 1980
    Date of Patent: November 2, 1982
    Assignee: Merck & Co., Inc.
    Inventors: Paul A. Sandford, John K. Baird
  • Copolymers of N,N-dimethylacrylamide and acrylamide
    Patent number: 4326970
    Abstract: Novel copolymers of N,N-dimethylacrylamide and acrylamide are disclosed where the ratio of NNDMA to AM ranges from 10:90 to 95:5. The hydrolyzed copolymer is also disclosed where hydrolysis ranges from 5% to 65% and the ratio of NNDMA to AM is 5:95 to 95:5. These hydrolyzed copolymers are useful in enhanced oil recovery operations.
    Type: Grant
    Filed: May 2, 1980
    Date of Patent: April 27, 1982
    Assignee: Merck & Co., Inc.
    Inventors: Ian W. Cottrell, John K. Baird, Jaewon L. Shim
  • Synergistic blends of cellulase-free xanthan gum and cellulosics
    Patent number: 4313765
    Abstract: This invention relates to a blend of cellulase-free xanthan gum with a number of cellulosics, including carboxymethyl cellulose, hydroxyethyl cellulose and hydroxypropylmethyl cellulose. At 1:1 weight ratio, these blends show surprising viscosities when tested in aqueous solutions of 1%, 0.5%, 0.25% and 0.1% total gum concentration. The blends have utility in any application where cellulosics are used as thickeners, such as industrial or food applications, e.g., toothpaste, or drink mix formulations.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: February 2, 1982
    Assignee: Merck & Co., Inc.
    Inventors: John K. Baird, Paul A. Sandford, Jaewon L. Shim
  • Copolymers of N,N-dimethylacrylamide and acrylamide
    Patent number: 4254249
    Abstract: Novel copolymers of N,N-dimethylacrylamide and acrylamide are disclosed where the ratio of NNDMA to AM ranges from 10:90 to 95:5. The hydrolyzed copolymer is also disclosed where hydrolysis ranges from 5% to 65% and the ratio of NNDMA to AM is 5:95 to 95:5. These hydrolyzed copolymers are useful in enhanced oil recovery operations.
    Type: Grant
    Filed: November 17, 1978
    Date of Patent: March 3, 1981
    Assignee: Merck & Co., Inc.
    Inventors: Ian W. Cottrell, John K. Baird, Jaewon L. Shim