Patents by Inventor Sukhjit Hunjan

Sukhjit Hunjan 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).

  • Anthranilic acid derivatives as multi drug resistance modulators
    Patent number: 6218393
    Abstract: Anthranilic acids of formula (I): wherein each of R to R9 is an organic substituent, n is 0 or 1, m is 0 or an integer of 1 to 6, q is 0 or 1, X is a direct bond, O, S, —S—(CH2)p or —O—(CHO2)p— wherein p is from 1 to 6 and Ar is an unsaturated carbocyclic or heterocyclic group, and the pharmaceutically acceptable salts thereof, have activity as inhibitors of P-glycoprotein and may thus be used, inter alia, as modulators of multidrug resistance in the treatment of multidrug resistant cancers, for example to potentiate the cytotoxicity of a cancer drug.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: April 17, 2001
    Assignee: Xenova Limited
    Inventors: Hamish Ryder, Philip Anthony Ashworth, Michael Bryan Roe, Julie Elizabeth Brumwell, Sukhjit Hunjan, Adrian John Folkes, Jason Terry Sanderson, Susannah Williams, Levi Michael Maximen
  • Pharmaceutical piperazine compounds
    Patent number: 5935955
    Abstract: A piperazinedione of general formula (I): ##STR1## wherein R.sup.1 is selected from hydrogen;a group of formula --(NH).sub.t --COR.sup.3 wherein t is 0 or 1 and R.sup.3 is an organic substituent as defined herein;a group of formula (D): ##STR2## and a group of formula (E): ##STR3## and the pharmaceutically acceptable salts thereof are useful as modulators of multi-drug resistance.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: August 10, 1999
    Assignee: Xenova Limited
    Inventors: Philip A. Ashworth, Sukhjit Hunjan, Ian A. Pretswell, Harnish Ryder, Stephen J. Brocchini