Patents by Inventor Zhiming Eric Dong

Zhiming Eric Dong 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).

  • Patent number: 10370382
    Abstract: There is provided a novel process for the preparation of a compound of formula (I), wherein R1 is as described in the description, by demethylation of a corresponding O-methyl derivative.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: August 6, 2019
    Assignee: Cambrex Charles City, Inc.
    Inventors: Pär Holmberg, Michael Robert Tracey, Zhiming Eric Dong
  • Publication number: 20180354961
    Abstract: There is provided a novel process for the preparation of a compound of formula (I), wherein R1 is as described in the description, by demethylation of a corresponding O-methyl derivative.
    Type: Application
    Filed: July 26, 2016
    Publication date: December 13, 2018
    Applicant: Cambrex Charles City, Inc.
    Inventors: Pär Holmberg, Michael Robert Tracey, Zhiming Eric Dong
  • Patent number: 9981979
    Abstract: There is provided a novel process for the preparation of a hydrocodone salt. In particular, there is provided a novel process for the preparation of a free-flowing slurry of a hydrocodone salt, for example, a free-flowing slurry of hydrocodone bitartrate hemipentahydrate.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: May 29, 2018
    Assignee: Cambrex Charles City, Inc.
    Inventors: Michael Robert Tracey, Zhiming Eric Dong
  • Publication number: 20170327511
    Abstract: There is provided a novel process for the preparation of a hydrocodone salt. In particular, there is provided a novel process for the preparation of a free-flowing slurry of a hydrocodone salt, for example, a free-flowing slurry of hydrocodone bitartrate hemipentahydrate.
    Type: Application
    Filed: November 2, 2015
    Publication date: November 16, 2017
    Applicant: Cambrex Charles City, Inc.
    Inventors: Michael Robert Tracey, Zhiming Eric Dong