Patents by Inventor David D. Heath

David D. Heath 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).

  • Process of manufacturing surfactants and lubricants
    Patent number: 11970574
    Abstract: A method of producing an alcohol ethoxylate surfactant or lubricant, the method including reacting a low molecular weight initiator with ethylene oxide in the presence of a polymerization catalyst, the low molecular weight initiator having a nominal hydroxyl functionality at least 1, and the polymerization catalyst being a Lewis acid catalyst having the general formula M(R1)I(R2)I(R3)I(R4)0 or 1, whereas M is boron, aluminum, indium, bismuth or erbium, R1, R2, R3, and R4 are each independent, R1 includes a first fluoroalkyl-substituted phenyl group, R2 includes a second fluoroalkyl-substituted phenyl group or a first fluoro/chloro-substituted phenyl group, R3 includes a third fluoroalkyl-substituted phenyl group or a second fluoro/chloro-substituted phenyl group, and optional R4 includes a functional group or functional polymer group, R1 being different from at least one of R2 and R3.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: April 30, 2024
    Assignee: Dow Global Technologies LLC
    Inventors: Arjun Raghuraman, William H. Heath, Bruce D. Hook, Wanglin Yu, Sukrit Mukhopadhyay, Heather A. Spinney, David R. Wilson
  • Vaccines comprising antigenic polypeptides of Taenia ovis
    Patent number: 5618542
    Abstract: This invention relates to polypeptide antigens of T.ovis suitable for use in vaccines to protect ruminants against infection by cestode parasites, The antigens are preferably obtained by expression of DNA coding therefor in a recombinant host cell. Aspects of the invention include DNA encoding the antigens, vectors containing the DNA and hosts which express the antigens.The invention also provides antibody and DNA probes for use in identifying protective antigens of cestode parasites other than T.ovis.
    Type: Grant
    Filed: July 6, 1994
    Date of Patent: April 8, 1997
    Assignees: Coopers Animal Health NZ Limited, University of Melbourne, Ministry of Agriculture & Fisheries
    Inventors: Gavin B. L. Harrison, Robert P. Dempster, Michael D. Rickard, David D. Heath, Stephen B. Lawrence, Jennifer G. Vinton, Marshall W. Lightowlers, Kim L. O'Hoy, Kevin S. Johnson
  • Antigenic polypeptides of Taenia ovis
    Patent number: 5599692
    Abstract: This invention relates to polypeptide antigens of T.ovis suitable for use in vaccines to protect ruminants against infection by cestode parasites. The antigens are preferably obtained by expression of DNA coding therefor in a recombinant host cell. Aspects of the invention include DNA encoding the antigens, vectors containing the DNA and hosts which express the antigens.The invention also provides antibody and DNA probes for use in identifying protective antigens of cestode parasites other than T.ovis.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: February 4, 1997
    Assignees: Coopers Animal Health NZ Limited, University of Melbourne, Ministry of Agriculture & Fisheries
    Inventors: Gavin B. L. Harrison, Robert P. Dempster, Michael D. Rickard, Marshall W. Lightowlers, Kim L. O'Hoy, Kevin S. Johnson, David D. Heath, Stephen B. Lawrence, Jennifer G. Vinton
  • Stable forms of antigenic Taenia ovis polypeptides
    Patent number: 5366728
    Abstract: Stable forms of Taenia ovis peptide antigens, such as portions of a T. ovis oncosphere antigen which runs as a 47-52 kDa doublet, are suitable for use in vaccines to protect ruminants against infection by cestode parasites. The antigens are preferably obtained by isolation and expression of the DNA encoding them in recombinant host cells. Aspects of the invention include DNA encoding T. ovis antigens, vectors containing such DNA and host cells which express the T. ovis antigens.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: November 22, 1994
    Assignees: Pitman-Moore New Zealand Limited, The University of Melbourne, Her Majestry the Queen in right of New Zealand through the Ministry of Agriculture & Fisheries
    Inventors: Gavin B. L. Harrison, Robert P. Dempster, Michael D. Rickard, Marshall W. Lightowlers, David D. Heath, Stephen B. Lawrence, Kim L. O'Hoy
  • Antigenic polypeptides of Taenia ovis
    Patent number: 5348740
    Abstract: This invention relates to polypeptide antigens of T.ovis suitable for use in vaccines to protect ruminants against infection by cestode parasites. The antigens are preferably obtained by expression of DNA coding therefor in a recombinant host cell. Aspects of the invention include DNA encoding the antigens, vectors containing the DNA and hosts which express the antigens.The invention also provides antibody and DNA probes for use in identifying protective antigens of cestode parasites other than T.ovis.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: September 20, 1994
    Assignees: Coopers Animal Health NZ Ltd., University of Melbourne, Ministry of Agriculture & Fisheries
    Inventors: Gavin B. L. Harrison, Robert P. Dempster, Michael D. Rickard, Marshall W. Lightowlers, Kim L. O'Hoy, Kevin S. Johnson, David D. Heath, Stephen B. Lawrence, Jennifer G. Vinton
  • Stable forms of antigenic Taenia ovis polypeptides
    Patent number: 5192538
    Abstract: This invention relates to stable forms of peptide antigens of T. ovis suitable for use in vaccines to protect ruminants against infection by cestode parasites. The antigens are preferably obtained by expression of DNA coding therefor in a recombinant host cell. Aspects of the invention include DNA encoding the antigens, vectors containing the DNA and hosts which express the antigens.
    Type: Grant
    Filed: January 3, 1992
    Date of Patent: March 9, 1993
    Assignees: Pitman-Moore New Zealand Limited, The University of Melbourne, Her Majesty The Queen in right of New Zealand through the Ministry of Agriculture & Fisheries
    Inventors: Gavin B. L. Harrison, Robert P. Dempster, Michael D. Rickard, Marshall W. Lightowlers, David D. Heath, Stephen B. Lawrence, Kim L. O'Hoy