Patents by Inventor Yu-Shin Ding

Yu-Shin Ding 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).

  • No-carrier-added (NCA) aryl (18E) fluorides via the nucleophilic aromatic substitution of electron rich aromatic rings
    Patent number: 5254726
    Abstract: A method for synthesizing no-carrier-added (NCA) aryl [.sup.18 F] fluoride substituted aromatic aldehyde compositions bearing an electron donating group is described. The method of the present invention includes the step of reacting aromatic nitro aldehydes having a suitably protected hydroxyl substitutent on an electron rich ring. The reaction isThe U.S. Government has rights in this invention pursuant to Contract Number DE-AC02-76CH00016, between the U.S. Department of Energy and Associated Universities Inc.
    Type: Grant
    Filed: June 7, 1991
    Date of Patent: October 19, 1993
    Assignee: The United States of America as represented by the Department of Energy
    Inventors: Yu-Shin Ding, Joanna S. Fowler, Alfred P. Wolf