Patents by Inventor Pär Holmberg

Pär Holmberg 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).

  • Process for preparing hydromorphone and derivatives thereof
    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
  • NEW PROCESS FOR PREPARING HYDROMORPHONE AND DERIVATIVES THEREOF
    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
  • Preparation of saturated ketone morphinan compounds by catalytic isomerisation
    Patent number: 9981978
    Abstract: There is provided a novel process for the preparation of a compound of formula I, wherein R1, R2 and R3 are as described in the description, by conversion of a corresponding allylic alcohol.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: May 29, 2018
    Assignee: Cambrex Charles City, Inc.
    Inventors: Michael Tracey, Pär Holmberg, Belén Lindberg Martín Matute, Antonio Bermejo Gómez, Jan-Erling Bäckvall
  • PREPARATION OF SATURATED KETONE MORPHINAN COMPOUNDS BY CATALYTIC ISOMERISATION
    Publication number: 20160168159
    Abstract: There is provided a novel process for the preparation of a compound of formula I, wherein R1, R2 and R3 are as described in the description, by conversion of a corresponding allylic alcohol.
    Type: Application
    Filed: July 23, 2014
    Publication date: June 16, 2016
    Inventors: Michael Tracey, Pär Holmberg
  • Processes for preparing 4-substituted imidazoles
    Patent number: 8962862
    Abstract: There is provided a novel process for the preparation of a compound of formula (I), (Formula (I)). There is also provided novel processes to intermediates of the compound of formula (I), as well as novel intermediates themselves.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: February 24, 2015
    Assignee: Cambrex Karlskoga AB
    Inventors: Lars Eklund, Lars Hansson, Tommy Lundholm, Pär Holmberg, Margus Eek
  • NEW PROCESSES FOR PREPARING 4-SUBSTITUTED IMIDAZOLES
    Publication number: 20140187789
    Abstract: There is provided a novel process for the preparation of a compound of formula (I), (Formula (I)). There is also provided novel processes to intermediates of the compound of formula (I), as well as novel intermediates themselves.
    Type: Application
    Filed: July 20, 2012
    Publication date: July 3, 2014
    Applicant: CAMBREX KARLSKOGA AB
    Inventors: Lars Eklund, Lars Hansson, Tommy Lundholm, Pär Holmberg, Margus Eek