Patents by Inventor Stephen Wolthoff

Stephen Wolthoff 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).

  • Treatment of sexual dysfunction with an extract of Lepidium meyenii roots
    Patent number: 6428824
    Abstract: An isolated composition obtained by extracting Lepidium meyenii roots is provided. The composition is substantially free of cellulose and comprises between about 5% and about 9% of benzyl isothiocyanate, between about 1% and about 3% of Lepidium sterol component, between about 20% and about 30% of Lepidium fatty acid component, and about 10% or more of macamide component. The composition is prepared by a process which comprises contacting Lepidium meyenii roots with a first aqueous solvent of about 90% vol-% or more water, then separating the residual Lepidium meyenii root material from the first contacted aqueous solvent, then contacting the residual Lepidium meyenii root material with a second aqueous solvent which comprises a mixture of an alcohol and water having about 90 vol-% alcohol or more to form a liquor, and then finally concentrating the liquor to obtain the composition. The composition can be used for treating cancer and sexual dysfunction.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: August 6, 2002
    Assignee: Pure World Botanicals, Inc.
    Inventors: Bo Lin Zheng, Calvin Hyungchan Kim, Stephen Wolthoff, Kan He, Lingling Rogers, Yu Shao, Qun Yi Zheng
  • Compositions and methods for their preparation from lepidium
    Publication number: 20020061341
    Abstract: The invention relates to compositions that can be isolated from Lepidium plant material and to methods for their isolation. The compositions are useful for treating and preventing cancer and sexual dysfunction.
    Type: Application
    Filed: October 19, 2001
    Publication date: May 23, 2002
    Inventors: Bo Lin Zheng, Calvin Hyungchan Kim, Stephen Wolthoff, Kan He, Lingling Rogers, Yu Shao, Qun Yi Zheng
  • Compositions and methods for their preparation from lepidium
    Publication number: 20020042530
    Abstract: The invention relates to compositions that can be isolated from Lepidium plant material and to methods for their isolation. The compositions are useful for treating and preventing cancer and sexual dysfunction.
    Type: Application
    Filed: June 8, 2001
    Publication date: April 11, 2002
    Inventors: Bo Lin Zheng, Calvin Hyungchan Kim, Stephen Wolthoff, Kan He, Lingling Rogers, Yu Shao, Qun Yi Zheng
  • Extract of Lepidium meyenii roots for pharmaceutical applications
    Patent number: 6267995
    Abstract: An isolated composition obtained by extracting Lepidium meyenii roots is provided. The composition is substantially free of cellulose and comprises between about 5% and about 9% of benzyl isothiocyanate, between about 1% and about 3% of Lepidium sterol component, between about 20% and about 30% of Lepidium fatty acid component, and about 10% or more of macamide component. The composition is prepared by a process which comprises contacting Lepidium meyenii roots with a first aqueous solvent of about 90% vol-% or more water, then separating the residual Lepidium meyenii root material from the first contacted aqueous solvent, then contacting the residual Lepidium meyenii root material with a second aqueous solvent which comprises a mixture of an alcohol and water having about 90 vol-% alcohol or more to form a liquor, and then finally concentrating the liquor to obtain the composition. The composition can be used for treating cancer and sexual dysfunction.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: July 31, 2001
    Assignee: Pure World Botanicals, Inc.
    Inventors: Bo Lin Zheng, Calvin Hyungchan Kim, Stephen Wolthoff, Kan He, Lingling Rogers, Yu Shao, Qun Yi Zheng