Patents Examined by Robert Deemie
  • Esters of 5-aminolevulinic acid as photosensitizing agents in photochemotherapy
    Patent number: 6034267
    Abstract: The invention provides a pharmaceutical compositions comprising a compound of formula I:R.sub.2.sup.2 N--CH.sub.2 COCH.sub.2 --CH.sub.2 CO--OR.sup.1(I)wherein, R.sup.1 and R.sup.2 have any of the values defined in the specification; or a salt thereof; and a pharmaceutically acceptable carrier or excipient. The invention also provides a method for the diagnosis or photochemotherapeutic treatment of disorders or abnormalities of external or internal surfaces of the body using such compounds or salts.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: March 7, 2000
    Assignee: PhotoCure AS
    Inventors: Karl E. Gierskcky, Johan Moan, Qian Peng, Harald Steen, Trond Warloe, Alf Bjorseth
  • Method for preparing 3-amino substituted crotonates
    Patent number: 5910602
    Abstract: The present invention relates to methods for preparing 3-amino-4,4,4-trihalocrotonates and their derivatives from a 4,4,4-trihaloacetoacetate derivative and an amine or ammonium salt.
    Type: Grant
    Filed: April 29, 1998
    Date of Patent: June 8, 1999
    Assignee: Rohm and Haas Company
    Inventors: Joshua Anthony Chong, Fereydon Abdesken, Peter Osei-Gyimah