Patents by Inventor Richard H. Spector

Richard H. Spector 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).

  • Preparation of d4T from 5-methyluridine
    Patent number: 5608049
    Abstract: The present invention concerns an improved process of making d4T from 5-MU. Another aspect of the invention relates to useful intermediates produced during the process.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: March 4, 1997
    Assignee: Bristol-Myers Squibb Company
    Inventors: Richard H. Spector, Bang-Chi Chen, Sandra L. Quinlan
  • Process intermediate for the preparation of encainide
    Patent number: 4800226
    Abstract: A novel dimethylsulfate quaternary salt process intermediate useful in the manufacture of the antiarrhythmic agent encainide.
    Type: Grant
    Filed: April 20, 1987
    Date of Patent: January 24, 1989
    Assignee: Bristol-Myers Company
    Inventors: John L. Dillon, Richard H. Spector
  • Process for the preparation of encainide
    Patent number: 4675409
    Abstract: A new and novel process for the preparation of encainide (4-methoxy-2'-[2-(1-methyl-2-piperidyl)ethyl]-benzanilide) has been developed. The process utilizes .alpha.-picoline, O-nitrobenzaldehyde, and anisoyl chloride as starting materials.
    Type: Grant
    Filed: February 25, 1986
    Date of Patent: June 23, 1987
    Assignee: Bristol-Myers Company
    Inventors: John L. Dillon, Richard H. Spector