Patents by Inventor Howard Easterfield

Howard Easterfield 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).

  • Polymer comprising a plurality of phenothiazine groups and methods of making the same
    Patent number: 10947328
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: March 16, 2021
    Assignee: Ascensia Diabetes Care Holdings AG
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • POLYMER COMPRISING A PLURALITY OF PHENOTHIAZINE GROUPS AND METHODS OF MAKING THE SAME
    Publication number: 20200255552
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • Polymer comprising a plurality of phenothiazine groups and methods of making the same
    Patent number: 10662264
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: May 26, 2020
    Assignee: Ascensia Diabetes Care Holdings AG
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • POLYMER COMPRISING A PLURALITY OF PHENOTHIAZINE GROUPS AND METHODS OF MAKING THE SAME
    Publication number: 20180194877
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Application
    Filed: March 8, 2018
    Publication date: July 12, 2018
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • Polymer comprising a plurality of phenothiazine groups and methods of making the same
    Patent number: 9944725
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: April 17, 2018
    Assignee: Ascensia Diabetes Care Holdings AG
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • POLYMER COMPRISING A PLURALITY OF PHENOTHIAZINE GROUPS AND METHODS OF MAKING THE SAME
    Publication number: 20170044276
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Application
    Filed: October 26, 2016
    Publication date: February 16, 2017
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • Polymer comprising a plurality of phenothiazine groups and methods of making the same
    Patent number: 9505884
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: November 29, 2016
    Assignee: Ascensia Diabetes Care Holdings AG
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • Polymer Comprising A Plurality Of Phenothiazine Groups And Methods Of Making The Same
    Publication number: 20160083519
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Application
    Filed: December 9, 2015
    Publication date: March 24, 2016
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • Polymer comprising a plurality of phenothiazine groups and methods of making the same
    Patent number: 9238717
    Abstract: A non-leaching mediator may include a polymer comprising the general formula (VIII): and salts thereof, where R? is an organic group, m is 0 or 1, n is about 9, and x and y independently are an integer from 1 to 10,000.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: January 19, 2016
    Assignee: BAYER HEALTHCARE LLC
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • Polymer Comprising A Plurality Of Phenothiazine Groups And Methods Of Making The Same
    Publication number: 20140235797
    Abstract: A non-leaching mediator may include a polymer comprising the general formula (VIII): and salts thereof, where R? is an organic group, m is 0 or 1, n is about 9, and x and y independently are an integer from 1 to 10,000.
    Type: Application
    Filed: April 23, 2014
    Publication date: August 21, 2014
    Applicant: Bayer HealthCare LLC
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • Polymer bonded redox molecules and methods of making the same
    Patent number: 8742063
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: June 3, 2014
    Assignee: Bayer HealthCare LLC
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • Polymer Bonded Redox Molecules And Methods Of Making The Same
    Publication number: 20110294959
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Application
    Filed: May 26, 2011
    Publication date: December 1, 2011
    Applicant: BAYER HEALTHCARE LLC
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield