Patents by Inventor Thomas Porter

Thomas Porter 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).

  • Methods of making dihydropyrone HIV protease inhibitors
    Patent number: 6380400
    Abstract: The present invention relates to methods of making dihydropyrone HIV inhibitors.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: April 30, 2002
    Inventors: Victor Fedij, Christopher Andrew Gajda, Brian Keith Huckabee, Brian Stuart Moon, Kenneth Thomas Porter, Denis Martin Sobieray, Timothy Lee Stuk, Bradley Dean Tait, James Norton Wemple
  • Solid bulk compositions containing quinolone carboxylic acids or naphthyridine carboxylic acids in free base form
    Patent number: 5783585
    Abstract: The present invention provides a method of making quinolone carboxylic acids or naphthyridine carboxylic acids in free base form, the method comprising dissolving a quinolone carboxylic acid salt or naphthyridine carboxylic acid salt in a solvent system to form a solution; combining the solution containing the quinolone carboxylic acid salt or naphthyridine carboxylic acid salt with a calcium salt in an amount in the range of about 0.01% to about 5.0% by weight of the quinolone carboxylic acid salt or naphthyridine carboxylic acid salt and a base, the combination resulting in the formation of a precipitate; and collecting the precipitate. Also provided is a solid bulk pharmaceutical chemical composition comprising 7-(3-amino-1-pyrrolidinyl)-8-chloro-1-cyclopropyl-6-fluoro-1,4-dihydro-4-o xoquinoline-3-carboxylic acid or 7-?3-S-(2-S-aminopropionylamino)pyrrolidin-1-yl!-1-cyclopropyl-6-fluoro-1, 4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acid; and calcium in an amount in the range of 0.001% to about 1.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: July 21, 1998
    Assignee: Warner-Lambert Company
    Inventors: Gary Jay Dozeman, Kenneth Thomas Porter, James Norton Wemple