Patents by Inventor Todd Waller

Todd Waller 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).

  • Cinnamoyl-C-glycoside chromone isolated from aloe barbadensis
    Patent number: 5965540
    Abstract: A composition of matter comprising at least 15% by weight of the compound: 8-C-.beta.-D-[2'-.omicron.-(E)-cinnamoyl]glycopyranosyl-2-[(S)-2-hydroxyl] propyl-7-methoxy-5-methylchromone. This compound, found in very small amounts in leaves of the Aloe Barbadensis plant, when concentrated to the desired level, exhibits anti-inflammatory activity.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: October 12, 1999
    Assignee: Univera Pharmaceuticals, Inc.
    Inventor: Todd A. Waller
  • Purification of cinnamoyl-C-glyoside chromone
    Patent number: 5675000
    Abstract: The present invention provides a process for purifying the cinnamoyl-C-glycoside, 8-C-.beta.-D-?2-O-(E)-cinnamoyl!glycopyranosyl-2- ?(R)-2-hydroxy!propyl-7-methoxy-5-methyl-chromone, referred to herein as the "540 compound." In one embodiment of the present invention the 540 compound is purified by extraction from a decolorizing agent with an organic solvent. The extracted product can be further purified by high pressure liquid chromatography. In a second embodiment crude 540 compound, which has not been treated with a decolorizing agent, is purified by passage over neutral alumina or sephadex.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: October 7, 1997
    Assignee: Univera Phytoceuticals, Inc.
    Inventors: Todd Waller, Qi Jia, Abeysinghe Padmapriya
  • Purification of cinnamoyl-C-glycoside chromone
    Patent number: RE37771
    Abstract: The present invention provides a process for purifying the cinnamoyl-C-glycoside, 8-C-&bgr;-D-[2-O-(E)-cinnamoyl]glycopyranosyl-2- [(R)-2-hydroxy]propyl-7-methoxy-5-methyl-chromone. 8-C-&bgr;-D-[2′-O- (E)-cinnamoyl]glycopyranosyl-2-[(S) -2-hydroxy]propyl-7-methoxy-5-methylchromone, referred to herein as the “540 compound.” In one embodiment of the present invention the 540 compound is purified by extraction from a decolorizing agent with an organic solvent. The extracted product can be purified by high pressure liquid chromatography. In a second embodiment crude 540 compound, which has not been treated with a decolorizing agent, is purified by passage over neutral alumina or sephadex.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: June 25, 2002
    Assignee: Univera Pharmaceuticals, Inc.
    Inventors: Todd Waller, Qi Jia, Abeysinghe Padmapriya