Patents by Inventor John Vukovic

John Vukovic 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).

  • Methods and apparatus for the analysis of vitamin D metabolites
    Patent number: 9719970
    Abstract: The present disclosure relates to CO2-based chromatography for the efficient and precise separation of Vitamin D metabolites.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: August 1, 2017
    Assignee: Waters Technologies Corporation
    Inventor: John Vukovic
  • METHODS AND APPARATUS FOR THE ANALYSIS OF VITAMIN D METABOLITES
    Publication number: 20150308987
    Abstract: The present disclosure relates to CO2-based chromatography for the efficient and precise separation of Vitamin D metabolites.
    Type: Application
    Filed: November 26, 2013
    Publication date: October 29, 2015
    Inventor: John VUKOVIC
  • Enzymatic preparation of 3',4'-anhydrovinblastine
    Patent number: 4918011
    Abstract: 3',4'-anhydrovinblastine, a precursor of the anti-tumor alkaloids vincristine and vinblastine, is prepared by the enzymatic coupling of catharanthine and vindoline using an iron-containing compound such as peroxidase optionally in the presence of a peroxide. Substantially enhanced yields are obtained.
    Type: Grant
    Filed: August 4, 1986
    Date of Patent: April 17, 1990
    Assignee: Allelix Biopharmaceuticals Inc.
    Inventors: Anne E. Goodbody, Endo Tsuyoshi, John Vukovic, Masanaru Misawa
  • Production of alkaloid dimers using ferric ion
    Patent number: 4778885
    Abstract: Alkaloid dimers are formed by coupling vindoline and catharanthine in the presence of ferric ion. The predominant products are 3',4'-anhydrovinblastine and vinblastine when reaction conditions are selected appropriately.
    Type: Grant
    Filed: September 18, 1986
    Date of Patent: October 18, 1988
    Assignee: Allelix Inc.
    Inventors: John Vukovic, Anne E. Goodbody