Patents by Inventor Duncan Clark

Duncan Clark 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).

  • Thermostable DNA polymerase
    Patent number: 8986968
    Abstract: There is provided a polypeptide having thermostable DNA polymerase activity and comprising or consisting of an amino acid sequence with at least 55% identity to Thermodesulfatator indicus DNA polymerase I Large fragment shown in SEQ ID NO: 1 or in SEQ ID NO:32.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: March 24, 2015
    Assignee: Genesys Biotech Ltd.
    Inventors: Duncan Clark, Nicholas Morant
  • THERMOSTABLE DNA POLYMERASE FROM PALAEOCOCCUS HELGESONII
    Publication number: 20110104761
    Abstract: There is provided a polypeptide having thermostable DNA polymerase activity and comprising or consisting of an amino acid sequence with at least 78% identity to Palaeococcus helgesonii DNA polymerase shown in SEQ ID NO: 1 or SEQ ID NO:39.
    Type: Application
    Filed: March 13, 2009
    Publication date: May 5, 2011
    Inventors: Duncan Clark, Nicholas Morant
  • THERMOSTABLE DNA POLYMERASE FROM PALAEOCOCCUS FERROPHILUS
    Publication number: 20110014660
    Abstract: There is provided a polypeptide having thermostable DNA polymerase activity and comprising or consisting of an amino acid sequence with at least 90% identity to Palaeococcus ferrophilus DNA polymerase shown in SEQ ID NO: 1.
    Type: Application
    Filed: March 13, 2009
    Publication date: January 20, 2011
    Applicant: GeneSys Ltd
    Inventors: Duncan Clark, Nicholas Morant
  • ENZYME
    Publication number: 20110008848
    Abstract: There is provided a polypeptide having thermostable DNA polymerase activity and comprising or consisting of an amino acid sequence with at least 55% identity to Thermodesulfatator indicus DNA polymerase I Large fragment shown in SEQ ID NO: 1 or in SEQ ID NO:32.
    Type: Application
    Filed: February 13, 2009
    Publication date: January 13, 2011
    Applicant: GeneSys Ltd.
    Inventors: Duncan Clark, Nicholas Morant
  • Amplification process
    Publication number: 20060057617
    Abstract: A method for conducting a nucleic acid amplification reaction, said method comprising forming an amplification reaction mixture in the presence of sufficient of a pyrophosphate salt to prevent primer extension taking place, digesting said pyrophosphate salt with a pyrophosphatase enzyme (PPase), and subjecting said reaction mixture to conditions such that an amplification reaction may proceed. This can be used as a “hot start” amplification. Particular novel pyrophosphatase enzymes for use in the method are also described and claimed.
    Type: Application
    Filed: August 17, 2005
    Publication date: March 16, 2006
    Inventors: Duncan Clark, Suzanne Vincent
  • Production of esters
    Patent number: 3960930
    Abstract: The present invention relates to a process for the production of unsaturated esters which comprises the step of introducing an olefinic hydrocarbon to a solution containing a palladous salt, a carboxylic acid, carboxylate ions additional to any provided by self-ionisation of the carboxylic acid, a redox system and at most an amount of water allowing said ester formation.
    Type: Grant
    Filed: March 14, 1967
    Date of Patent: June 1, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventor: Duncan Clark