Patents by Inventor Yee-Hwee Lim

Yee-Hwee Lim 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).

  • PHOSPHORUS-CONTAINING CATALYSTS
    Publication number: 20170282170
    Abstract: The invention provides compounds of general structure I: (Ar1—Ar2—Ar3-E-P(=D)R2-)nMmXnLn?.
    Type: Application
    Filed: August 29, 2014
    Publication date: October 5, 2017
    Applicant: Agency for Science, Technology and Research
    Inventors: Charles W. Johannes, Edward G. Robins, Howard Jong, Yee Hwee Lim, Saei Weng Chia, Yong Yang, Anil Podichetty
  • PHOSPHORUS-CONTAINING CATALYSTS
    Publication number: 20160207034
    Abstract: The invention provides compounds of general structure I: (Ar1—Ar2—Ar3-E-P(=D)R2-)nMmXnLn?.
    Type: Application
    Filed: August 29, 2014
    Publication date: July 21, 2016
    Applicant: Agency for Science, Technology and Research
    Inventors: Charles W. Johannes, Edward G. Robins, Howard Jong, Yee Hwee Lim, Saei Weng Chia, Yong Yang, Anil Podichetty
  • Fluorine Radiolabelling Process
    Publication number: 20130190529
    Abstract: The invention relates to a process for producing a process for producing an 18F-labelled compound, the process comprising treating a compound of formula (I) wherein EDG is an electron-donating group selected from —OH, —OR4, —NHR5 and —NR55R5; R1, R2, X1 and X2 are as defined herein; and R3 is selected from H, X3 and X4, wherein X3 is a monodentate cleavable surrogate group, and X4 is a bidentate cleavable surrogate group which is bonded (a) to said X1 or X2 and (b) to the ring carbon atom para to EDG; with [18F]fluoride in the presence of an oxidant, thereby producing, when R3 in the compound of formula (I) is H, an 18F-labelled compound of formula (II), wherein EDG is as defined above and R1, R2, X1 and X2 are as defined herein; or thereby producing, when R3 in the compound of formula (I) is said monodentate cleavable surrogate group X3, a compound of formula (IIa), wherein EDG? is O, NR5, —NR55R5 or [OR4]+, and wherein R4, R5, R55, R1, R2, X1, X2 and X3 are as defined herein; or thereby producing, whe
    Type: Application
    Filed: July 6, 2011
    Publication date: July 25, 2013
    Inventors: Veronique Gouveneur, Lei Li, Yee-Hwee Lim, Mickael Huiban