Patents by Inventor Dennis C. Aubuchon

Dennis C. Aubuchon 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).

  • PROCESSES FOR PREPARING MORPHINAN-6-ONE PRODUCTS WITH LOW LEVELS OF ALPHA, BETA-UNSATURATED KETONE COMPOUNDS
    Publication number: 20220079938
    Abstract: The present invention generally relates to processes for preparing highly pure morphinan-6-one products. The processes involve reducing the concentration of alpha, beta unsaturated ketone compounds present as impurities in morphinan 6 one products or reaction mixtures including morphinan 6 one compounds by treatment with a sulfur-containing compound.
    Type: Application
    Filed: November 29, 2021
    Publication date: March 17, 2022
    Applicant: SpecGx LLC
    Inventors: Henry J. Buehler, William E. Dummitt, Anthony Mannino, Dennis C. Aubuchon, Hong Gu
  • PROCESSES FOR PREPARING MORPHINAN-6-ONE PRODUCTS WITH LOW LEVELS OF a,ß-UNSATURATED KETONE COMPOUNDS
    Publication number: 20200338068
    Abstract: The present invention generally relates to processes for preparing highly pure morphinan-6-one products. The processes involve reducing the concentration of alpha, beta unsaturated ketone compounds present as impurities in morphinan 6 one products or reaction mixtures including morphinan 6 one compounds by treatment with a sulfur-containing compound.
    Type: Application
    Filed: July 13, 2020
    Publication date: October 29, 2020
    Applicant: SpecGx LLC
    Inventors: Henry J. Buehler, William E. Dummitt, Anthony Mannino, Dennis C. Aubuchon, Hong Gu
  • PROCESSES FOR PREPARING MORPHINAN-6-ONE PRODUCTS WITH LOW LEVELS OF a,ß-UNSATURATED KETONE COMPOUNDS
    Publication number: 20190381033
    Abstract: The present invention generally relates to processes for preparing highly pure morphinan-6-one products. The processes involve reducing the concentration of alpha, beta unsaturated ketone compounds present as impurities in morphinan 6 one products or reaction mixtures including morphinan 6 one compounds by treatment with a sulfur-containing compound.
    Type: Application
    Filed: August 23, 2019
    Publication date: December 19, 2019
    Applicant: SpecGx LLC
    Inventors: Henry J. Buehler, William E. Dummitt, Anthony Mannino, Dennis C. Aubuchon, Hong Gu
  • Processes For Preparing Morphinan-6-One Products With Low Levels Of Alpha, Beta-Unsaturated Ketone Compounds
    Publication number: 20180008596
    Abstract: The present invention generally relates to processes for preparing highly pure morphinan-6-one products. The processes involve reducing the concentration of alpha, beta unsaturated ketone compounds present as impurities in morphinan 6 one products or reaction mixtures including morphinan 6 one compounds by treatment with a sulfur-containing compound.
    Type: Application
    Filed: September 21, 2017
    Publication date: January 11, 2018
    Applicant: Mallinckrodt LLC
    Inventors: Henry J Buehler, William E Dummitt, Anthony Mannino, Dennis C Aubuchon, Hong Gu
  • Processes For Preparing Morphinan-6-One Products With Low Levels Of Alpha, Beta-Unsaturated Ketone Compounds
    Publication number: 20160243113
    Abstract: The present invention generally relates to processes for preparing highly pure morphinan-6-one products. The processes involve reducing the concentration of alpha, beta unsaturated ketone compounds present as impurities in morphinan 6 one products or reaction mixtures including morphinan 6 one compounds by treatment with a sulfur-containing compound.
    Type: Application
    Filed: May 2, 2016
    Publication date: August 25, 2016
    Inventors: Henry J. Buehler, William E. Dummitt, Anthony Mannino, Dennis C. Aubuchon, Hong Gu
  • Processes For Preparing Morphinan-6-One Products With Low Levels Of Alpha, Beta-Unsaturated Ketone Compounds
    Publication number: 20150148365
    Abstract: The present invention generally relates to processes for preparing highly pure morphinan-6-one products. The processes involve reducing the concentration of alpha, beta unsaturated ketone compounds present as impurities in morphinan 6 one products or reaction mixtures including morphinan 6 one compounds by treatment with a sulfur-containing compound.
    Type: Application
    Filed: October 2, 2014
    Publication date: May 28, 2015
    Inventors: Henry J. Buehler, William E. Dummitt, Anthony Mannino, Dennis C. Aubuchon, Hong Gu
  • Process for preparing morphinan-6-one products with low levels of ?,?-unsaturated ketone compounds
    Patent number: 8871779
    Abstract: The present invention generally relates to processes for preparing highly pure morphinan-6-one products. The processes involve reducing the concentration of ?,?-unsaturated ketone compounds present as impurities in morphinan 6 one products or reaction mixtures including morphinan 6 one compounds by treatment with a sulfur-containing compound.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: October 28, 2014
    Assignee: Mallinckrodt LLC
    Inventors: Henry J. Buehler, William E. Dummitt, Anthony Mannino, Dennis C. Aubuchon, Hong Gu
  • Processes for preparing morphinan-6-one products with low levels of alpha beta-unsaturated compounds
    Patent number: 8748611
    Abstract: The present invention generally relates to processes for preparing highly pure morphinan-6-one products. The processes involve reducing the concentration of ?,?-unsaturated ketone compounds present as impurities in morphinan 6 one products or reaction mixtures including morphinan 6 one compounds by treatment with a sulfur-containing compound.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: June 10, 2014
    Assignee: Mallinckrodt LLC
    Inventors: Henry J. Buehler, William E. Dummitt, Anthony Mannino, Dennis C. Aubuchon, Hong Gu
  • PROCESSES FOR PREPARING MORPHINAN-6-ONE PRODUCTS WITH LOW LEVELS OF ALPHA BETA-UNSATURATED COMPOUNDS
    Publication number: 20120059167
    Abstract: The present invention generally relates to processes for preparing highly pure morphinan-6-one products. The processes involve reducing the concentration of ?,?-unsaturated ketone compounds present as impurities in morphinan 6 one products or reaction mixtures including morphinan 6 one compounds by treatment with a sulfur-containing compound.
    Type: Application
    Filed: November 11, 2011
    Publication date: March 8, 2012
    Applicant: Mallinckrodt Inc.
    Inventors: Henry J. Buehler, William E. Dummitt, Anthony Mannino, Dennis C. Aubuchon, Hong Gu
  • Process for Preparing Morphinan-6-One Products with Low Levels of Alpha, Beta-Unsaturated Ketone Compounds
    Publication number: 20080312442
    Abstract: The present invention generally relates to processes for preparing highly pure morphinan-6-one products. The processes involve reducing the concentration of ?,?-unsaturated ketone compounds present as impurities in morphinan 6 one products or reaction mixtures including morphinan 6 one compounds by treatment with a sulfur-containing compound.
    Type: Application
    Filed: March 2, 2007
    Publication date: December 18, 2008
    Inventors: Henry J. Buehler, William E. Dummitt, Anthony Mannino, Dennis C. Aubuchon, Hong Gu