Patents by Inventor Feodor Scheinmann

Feodor Scheinmann 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 making morphine-6-glucuronide and its analogues using haloglucuronate ester intermediates
    Patent number: 6642366
    Abstract: A process for manufacturing morphine-6-glucuronide and related compounds of the general structure of Formula 1: wherein optionally substituted morphine is conjugated with an optionally substituted member of a new class of intermediates, namely, 1-haloglucuronate esters, in the presence of iodine or an iodinium compound. The conjugation may be followed by conversion of R1 of Formula 1 into hydrogen and/or the removal of the ester groups from the glucuronic residue at R2 of Formula 1.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: November 4, 2003
    Assignee: UFC Limited
    Inventors: Feodor Scheinmann, Andrew Valentine Stachulski, John Ferguson, Jane Louise Law
  • Process for the preparation of optically active methadones in high enantiomeric purity
    Patent number: 6143933
    Abstract: A method of preparing optically active methadones comprises an enzymatic process for the resolution of 1-dialkyl-amino-2-propanol and conversion of the enantiomers to the optically active methadones in high enantiomeric purity.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: November 7, 2000
    Assignee: Salford Ultrafine Chemicals & Research Ltd.
    Inventors: Feodor Scheinmann, Jonathan David Hull, Nicholas John Turner
  • Process for making morphine-6-glucuronide or substituted morphine-6-glucuronide
    Patent number: 6046313
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: April 4, 2000
    Assignee: Salford Ultrafine Chemicals and Research Limited
    Inventors: Feodor Scheinmann, Keith William Lumbard, Richard Talbot Brown, Stephen Patrick Mayalarp, Neil Edward Carter
  • Process for making morphine-6-glucuronide or substituted morphine-6-glucuronide
    Patent number: 5977326
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: November 2, 1999
    Assignee: Salford Ultrafine Chemicals and Research Limited
    Inventors: Feodor Scheinmann, Simon Joel, Andrew V. Stachulski
  • Enzymatic process for making morphine-6-glucuronide or substituted morphine-6-glucuronide
    Patent number: 5750381
    Abstract: A method of making morphine-6-glucuronide comprising the selective enzymatic cleavage of the 3-glucuronide moiety in morphine-3, 6-glucuronide or substituted morphine-6-glucuronide using at least one .beta.-glucuronide.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: May 12, 1998
    Assignee: Salford Ultrafine Chemicals and Research Limited
    Inventors: Feodor Scheinmann, Nicholas John Turner, Neil Edward Carter, Richard Talbot Brown
  • Process for making morphine-6-glucuronide or substituted morphine-6-glucuronide
    Patent number: 5621087
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: April 15, 1997
    Assignee: Salford Ultrafine Chemicals and Research Limited
    Inventors: Feodor Scheinmann, Keith W. Lumbard, Richard T. Brown, Stephen P. Mayalarp, Neil E. Carter