Patents by Inventor Richard L. Norton

Richard L. Norton 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).

  • Publication number: 20180121137
    Abstract: The present invention is directed to a buprenorphine sustained release delivery system capable of delivering buprenorphine, a metabolite, or a prodrug thereof for a duration of about 14 days to about 3 months. The buprenorphine sustained release delivery system includes a flowable composition and a solid implant for the sustained release of buprenorphine, a metabolite, or a prodrug thereof. The implant is produced from the flowable composition. The buprenorphine sustained release delivery system provides in situ 1-month and 3-month release profiles characterized by an exceptionally high bioavailability and minimal risk of permanent tissue damage and typically no risk of muscle necrosis.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 3, 2018
    Inventors: Richard L. Norton, Andrew Watkins, Mingxing Zhou
  • Patent number: 9827241
    Abstract: The present invention is directed to a buprenorphine sustained release delivery system capable of delivering buprenorphine, a metabolite, or a prodrug thereof for a duration of about 14 days to about 3 months. The buprenorphine sustained release delivery system includes a flowable composition and a solid implant for the sustained release of buprenorphine, a metabolite, or a prodrug thereof. The implant is produced from the flowable composition. The buprenorphine sustained release delivery system provides in situ 1-month and 3-month release profiles characterized by an exceptionally high bioavailability and minimal risk of permanent tissue damage and typically no risk of muscle necrosis.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: November 28, 2017
    Assignee: Indivior UK Limited
    Inventors: Richard L. Norton, Andrew Watkins, Mingxing Zhou
  • Patent number: 9782402
    Abstract: The present invention is directed to a buprenorphine sustained release delivery system capable of delivering buprenorphine, a metabolite, or a prodrug thereof for a duration of about 14 days to about 3 months. The buprenorphine sustained release delivery system includes a flowable composition and a solid implant for the sustained release of buprenorphine, a metabolite, or a prodrug thereof. The implant is produced from the flowable composition. The buprenorphine sustained release delivery system provides in situ 1-month and 3-month release profiles characterized by an exceptionally high bioavailability and minimal risk of permanent tissue damage and typically no risk of muscle necrosis.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: October 10, 2017
    Assignee: Indivior UK Limited
    Inventors: Richard L. Norton, Andrew Watkins, Mingxing Zhou
  • Publication number: 20170281618
    Abstract: The present invention is directed to a buprenorphine sustained release delivery system capable of delivering buprenorphine, a metabolite, or a prodrug thereof for a duration of about 14 days to about 3 months. The buprenorphine sustained release delivery system includes a flowable composition and a solid implant for the sustained release of buprenorphine, a metabolite, or a prodrug thereof. The implant is produced from the flowable composition. The buprenorphine sustained release delivery system provides in situ 1-month and 3-month release profiles characterized by an exceptionally high bioavailability and minimal risk of permanent tissue damage and typically no risk of muscle necrosis.
    Type: Application
    Filed: June 14, 2017
    Publication date: October 5, 2017
    Inventors: Richard L. Norton, Andrew Watkins, Mingxing Zhou
  • Publication number: 20170216395
    Abstract: A PLG copolymer material, termed a PLG(p) copolymer material, adapted for use in a controlled release formulation for a bioactive material is provided, wherein the formulation exhibits a reduced “initial burst” effect when introduced into the tissue of a patient in need thereof. A method of preparation of the PLG copolymer material is also provided, as are methods of use.
    Type: Application
    Filed: April 18, 2017
    Publication date: August 3, 2017
    Inventors: Eric Dadey, John Middleton, Richard L. Norton
  • Patent number: 9655970
    Abstract: A PLG copolymer material, termed a PLG(p) copolymer material, adapted for use in a controlled release formulation for a bioactive material is provided, wherein the formulation exhibits a reduced “initial burst” effect when introduced into the tissue of a patient in need thereof. A method of preparation of the PLG copolymer material is also provided, as are methods of use.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: May 23, 2017
    Assignee: Tolmar Therapeutics, Inc.
    Inventors: Eric Dadey, John Middleton, Richard L. Norton
  • Publication number: 20170095560
    Abstract: A PLG copolymer material, termed a PLG(p) copolymer material, adapted for use in a controlled release formulation for a bioactive material is provided, wherein the formulation exhibits a reduced “initial burst” effect when introduced into the tissue of a patient in need thereof. A method of preparation of the PLG copolymer material is also provided, as are methods of use.
    Type: Application
    Filed: December 19, 2016
    Publication date: April 6, 2017
    Inventors: Eric Dadey, John Middleton, Richard L. Norton
  • Publication number: 20170079976
    Abstract: The present invention is directed to a buprenorphine sustained release delivery system capable of delivering buprenorphine, a metabolite, or a prodrug thereof for a duration of about 14 days to about 3 months. The buprenorphine sustained release delivery system includes a flowable composition and a solid implant for the sustained release of buprenorphine, a metabolite, or a prodrug thereof. The implant is produced from the flowable composition. The buprenorphine sustained release delivery system provides in situ 1-month and 3-month release profiles characterized by an exceptionally high bioavailability and minimal risk of permanent tissue damage and typically no risk of muscle necrosis.
    Type: Application
    Filed: October 25, 2016
    Publication date: March 23, 2017
    Inventors: Richard L. Norton, Andrew Watkins, Mingxing Zhou
  • Publication number: 20170079974
    Abstract: The disclosure provides extended release pharmaceutical formulations comprising an opioid,particularly buprenorphine, a biocompatible organic solvent, and, optionally, a glycol, for use in the treatment of pain or opioid dependence. The pharmaceutical formulations are in the form of a pharmaceutical solution.
    Type: Application
    Filed: March 9, 2015
    Publication date: March 23, 2017
    Inventors: Mingxing Zhou, Richard L. Norton
  • Patent number: 9561282
    Abstract: A PLG copolymer material, termed a PLG(p) copolymer material, adapted for use in a controlled release formulation for a bioactive material is provided, wherein the formulation exhibits a reduced “initial burst” effect when introduced into the tissue of a patient in need thereof. A method of preparation of the PLG copolymer material is also provided, as are methods of use.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: February 7, 2017
    Assignee: Tolmar Therapeutics, Inc.
    Inventors: Eric Dadey, John Middleton, Richard L. Norton
  • Patent number: 9498432
    Abstract: The present invention is directed to a buprenorphine sustained release delivery system capable of delivering buprenorphine, a metabolite, or a prodrug thereof for a duration of about 14 days to about 3 months. The buprenorphine sustained release delivery system includes a flowable composition and a solid implant for the sustained release of buprenorphine, a metabolite, or a prodrug thereof. The implant is produced from the flowable composition. The buprenorphine sustained release delivery system provides in situ 1-month and 3-month release profiles characterized by an exceptionally high bioavailability and minimal risk of permanent tissue damage and typically no risk of muscle necrosis.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: November 22, 2016
    Assignee: Indivior UK Limited
    Inventors: Richard L. Norton, Andrew Watkins, Mingxing Zhou
  • Publication number: 20160184296
    Abstract: This disclosure relates to a buprenorphine sustained release delivery system for treatment of conditions ameliorated by buprenorphine compounds. The sustained release delivery system includes a flowable composition containing a suspension of buprenorphine, a metabolite, or a prodrug thereof.
    Type: Application
    Filed: March 3, 2016
    Publication date: June 30, 2016
    Applicant: Indivior UK Limited
    Inventors: Richard L. Norton, Mingxing Zhou
  • Publication number: 20160128934
    Abstract: The present invention is directed to a buprenorphine sustained release delivery system capable of delivering buprenorphine, a metabolite, or a prodrug thereof for a duration of about 14 days to about 3 months. The buprenorphine sustained release delivery system includes a flowable composition and a solid implant for the sustained release of buprenorphine, a metabolite, or a prodrug thereof. The implant is produced from the flowable composition. The buprenorphine sustained release delivery system provides in situ 1-month and 3-month release profiles characterized by an exceptionally high bioavailability and minimal risk of permanent tissue damage and typically no risk of muscle necrosis.
    Type: Application
    Filed: January 13, 2016
    Publication date: May 12, 2016
    Inventors: Richard L. Norton, Andrew Watkins, Mingxing Zhou
  • Publication number: 20160106847
    Abstract: A PLG copolymer material, termed a PLG(p) copolymer material, adapted for use in a controlled release formulation for a bioactive material is provided, wherein the formulation exhibits a reduced “initial burst” effect when introduced into the tissue of a patient in need thereof. A method of preparation of the PLG copolymer material is also provided, as are methods of use.
    Type: Application
    Filed: October 27, 2015
    Publication date: April 21, 2016
    Inventors: Eric Dadey, John Middleton, Richard L. Norton
  • Patent number: 9308162
    Abstract: The present invention relates to biocompatible oligomer-polymer compositions for the in situ formation of implants, wherein the implants release a bioactive agent, a metabolite, or a prodrug thereof, at a controlled rate. The sustained release delivery system includes a flowable composition containing a bioactive agent, a metabolite, or a prodrug thereof, and an implant containing a bioactive agent, a metabolite, or a prodrug thereof. The flowable composition may be injected into tissue whereupon it coagulates to become the solid or gel, monolithic implant. The flowable composition includes a biodegradable, thermoplastic polymer, a biocompatible end-capped oligomeric liquid, and a bioactive agent, a metabolite, or a prodrug thereof.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: April 12, 2016
    Assignee: Tolmar Therapeutics, Inc.
    Inventor: Richard L. Norton
  • Patent number: 9295645
    Abstract: This disclosure relates to a buprenorphine sustained release delivery system for treatment of conditions ameliorated by buprenorphine compounds. The sustained release delivery system includes a flowable composition containing a suspension of buprenorphine, a metabolite, or a prodrug thereof.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: March 29, 2016
    Assignee: Indivior UK Limited
    Inventors: Richard L. Norton, Mingxing Zhou
  • Patent number: 9272044
    Abstract: The present invention is directed to a buprenorphine sustained release delivery system capable of delivering buprenorphine, a metabolite, or a prodrug thereof for a duration of about 14 days to about 3 months. The buprenorphine sustained release delivery system includes a flowable composition and a solid implant for the sustained release of buprenorphine, a metabolite, or a prodrug thereof. The implant is produced from the flowable composition. The buprenorphine sustained release delivery system provides in situ 1-month and 3-month release profiles characterized by an exceptionally high bioavailability and minimal risk of permanent tissue damage and typically no risk of muscle necrosis.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: March 1, 2016
    Assignee: Indivior UK Limited
    Inventors: Richard L. Norton, Andrew Watkins, Mingxing Zhou
  • Patent number: 9187593
    Abstract: A PLG copolymer material, termed a PLG(p) copolymer material, adapted for use in a controlled release formulation for a bioactive material is provided, wherein the formulation exhibits a reduced “initial burst” effect when introduced into the tissue of a patient in need thereof. A method of preparation of the PLG copolymer material is also provided, as are methods of use.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: November 17, 2015
    Assignee: Tolmar Therapeutics, Inc.
    Inventors: Eric Dadey, John Middleton, Richard L. Norton
  • Publication number: 20150216988
    Abstract: The present invention is directed to a buprenorphine sustained release delivery system capable of delivering buprenorphine, a metabolite, or a prodrug thereof for a duration of about 14 days to about 3 months. The buprenorphine sustained release delivery system includes a flowable composition and a solid implant for the sustained release of buprenorphine, a metabolite, or a prodrug thereof. The implant is produced from the flowable composition. The buprenorphine sustained release delivery system provides in situ 1-month and 3-month release profiles characterized by an exceptionally high bioavailability and minimal risk of permanent tissue damage and typically no risk of muscle necrosis.
    Type: Application
    Filed: January 30, 2015
    Publication date: August 6, 2015
    Inventors: Richard L. Norton, Andrew Watkins, Mingxing Zhou
  • Patent number: 8975270
    Abstract: The present invention is directed to a buprenorphine sustained release delivery system capable of delivering buprenorphine, a metabolite, or a prodrug thereof for a duration of about 14 days to about 3 months. The buprenorphine sustained release delivery system includes a flowable composition and a solid implant for the sustained release of buprenorphine, a metabolite, or a prodrug thereof. The implant is produced from the flowable composition. The buprenorphine sustained release delivery system provides in situ 1-month and 3-month release profiles characterized by an exceptionally high bioavailability and minimal risk of permanent tissue damage and typically no risk of muscle necrosis.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 10, 2015
    Assignee: RB Pharmaceuticals Limited
    Inventors: Richard L. Norton, Andrew Watkins, Mingxing Zhou