Patents by Inventor Ray J. Lo

Ray J. Lo 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).

  • Patent number: 8652492
    Abstract: Disclosed are tablets comprising hydrolytically stable formulations of (6-(5-fluoro-2-(3,4,5-trimethoxyphenylamino)pyrimidin-4-ylamino)-2,2-dimethyl-3-oxo-2H-pyrido[3,2-b][1,4]oxazin-4(3H)-yl)methyl phosphate disodium salt (Compound 1) prepared by a wet granulation process.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: February 18, 2014
    Assignee: Rigel Pharmaceutical, Inc.
    Inventors: Thomas Sun, Ray J. Lo
  • Patent number: 6358520
    Abstract: Solid water-dispersible compositions containing microencapsulated pesticides are produced by spray-drying an aqueous suspension of said pesticides in the presence of a water-soluble polymer, preferably polyvinyl alcohol.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: March 19, 2002
    Assignee: Syngenta Limited
    Inventors: Ray J. Lo, Jin L. Chen, Herbert B. Scher
  • Patent number: 5192498
    Abstract: It has now been discovered that the undesirable odor in thiocarbamate compounds can be suppressed or mostly eliminated by the process of this invention. Generally, the process of this invention involves mixing an aqueous solution of sodium hypochlorite, calcium hypochlorite or chloramine-B with the odorous thiocarbamate compound for a sufficient period of time, followed by a second step of mixing citric acid, maleic acid or oxalic acid with the treated thiocarbamate compound to eliminate chlorodialkylamine compounds produced in the first step.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: March 9, 1993
    Assignee: Imperial Chemical Industries plc
    Inventors: Chia-Chung Chen, Ray J. Lo
  • Patent number: 4948787
    Abstract: Mercaptan odors in a thiophosphate compound or formulation are suppressed by treatment of the compound during preparation of the formulation with treatment agents selected from iodine, and alkali and alkaline earth metal hydroxides, hypochlorites and iodates. Depending on the particular agent and method of treatment used, the agent and any reaction products resulting from the treatment may be either removed from the thiophosphate or retained with it in the final formulation. Formulations of particular interest are granular formulations for field application.
    Type: Grant
    Filed: January 4, 1989
    Date of Patent: August 14, 1990
    Assignee: Imperial Chemical Industries PLC
    Inventors: Chia-Chung Chen, Richard H. Rider, Ray J. Lo