Patents by Inventor Fei Shen

Fei Shen 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).

  • Publication number: 20040115147
    Abstract: Disclosed are antiperspirant compositions, particularly clear gel antiperspirant compositions, that are water-in-silicone oil emulsions. The emulsion includes a water phase, typically comprising about 65% to about 95% by weight of the emulsion, and a silicone oil phase, typically comprising about 5% to about 35% by weight of the emulsion. The water phase includes an antiperspirant salt dissolved therein, typically in an amount of about 8% to about 30% by weight of the emulsion, the antiperspirant salt comprising a calcium enhanced aluminum-zirconium chlorohydrate. The silicone oil phase contains less than about 5% by weight of the emulsion of a non-volatile oil and includes about 2% to about 25% by weight of the emulsion of a volatile linear silicone.
    Type: Application
    Filed: December 16, 2002
    Publication date: June 17, 2004
    Applicant: The Gillette Company
    Inventors: Tuan M. Vu, Yan-Fei Shen
  • Patent number: 6737400
    Abstract: This invention relates to a method for treating a subject with irritable bowel syndrome (“IBS”) which comprises long-term administration of an opioid receptor antagonist at an appropriately low dose which will selectively antagonize excitatory opioid receptor functions, but not inhibitory opioid receptor functions, in myenteric neurons in the intestinal tract as well as in neurons of the central nervous system (“CNS”). The administration of the opioid receptor antagonist at a low dose enhances the potency of the inhibitory effects of endogenous opioid peptides present in the intestinal tract and the CNS, thereby reducing abdominal pain and stool frequency resulting from abnormally supersensitized excitatory opioid receptor functions. The invention also relates to a composition for treating a subject with IBS, which comprises an effective dose of an opioid receptor antagonist, and a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: May 18, 2004
    Assignee: Albert Einstein College of Medicine of Yeshiva University
    Inventors: Stanley M. Crain, Ke-fei Shen, Gerald M. Fleischner
  • Publication number: 20040087607
    Abstract: The present invention provides a method for increasing analgesic potency of a bimodally-acting opioid agonist in a subject, by inhibiting GM1-ganglioside in nociceptive neurons. The present invention further provides a method for treating pain in a subject in need of treatment thereof. Also provided in the present invention is a method for treating chronic pain in a subject in need of treatment thereof. Additionally, the present invention provides a method for treating tolerance to or an addiction to a bimodally-acting opioid agonist in a subject in need of treatment thereof. Finally, the present invention provides a pharmaceutical composition of analgesic agents and a pharmaceutically-acceptable carrier.
    Type: Application
    Filed: June 11, 2003
    Publication date: May 6, 2004
    Inventors: Stanley M. Crain, Ke-Fei Shen
  • Patent number: 6726901
    Abstract: Disclosed is an anhydrous topical antiperspirant composition comprising a dermatologically acceptable carrier and a perspiration reducing effective amount of a particulate antiperspirant salt suspended in the carrier. The antiperspirant salt comprises an aluminum-zirconium chlorohydrate having a metal to chloride ratio between about 0.9 and about 1.3. The composition also includes, separate from the antiperspirant salt, a stabilizing basic material in an amount sufficient to prevent degradation of the antiperspirant composition or to minimize acid odor. Also disclosed is a method of reducing perspiration from human skin by applying the aforementioned topical composition.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: April 27, 2004
    Assignee: The Gillette Company
    Inventors: Yuling Yin, Jayant N. Sane, Yan-Fei Shen
  • Publication number: 20030232744
    Abstract: This invention relates to a method for selectively enhancing the analgesic potency of a bimodally-acting opioid agonist such as morphine and simultaneously attenuating anti-analgesia, hyperalgesia, hyperexcitability, physical dependence and/or tolerance effects associated with the administration of the bimodally-acting opioid agonist. The method of the present invention comprises administering to a subject an analgesic or sub-analgesic amount of a bimodally-acting opioid agonist such as morphine and an amount of an excitatory opioid receptor antagonist such as naltrexone or nalmefene effective to enhance the analgesic potency of the bimodally-acting opioid agonist and attenuate the anti-analgesia, hyperalgesia, hyperexcitability, physical dependence and/or tolerance effects of the bimodally-acting opioid agonist.
    Type: Application
    Filed: December 13, 2002
    Publication date: December 18, 2003
    Inventors: Stanley M. Crain, Ke-Fei Shen
  • Patent number: 6663854
    Abstract: Disclosed are enhanced efficacy aluminum-zirconium chlorohydrate antiperspirant salts having a metal (Al+Zr) to chloride ratio of about 0.9 to about 1.2, preferably about 0.9 to about 1.1, most preferably about 0.9 to about 1.0. To achieve the highest possible antiperspirant efficacy, these salts are made with or include a zirconium hydroxychloride of the formula Zr(OH)4−bClb wherein b is about 2.8 to about 4.0, preferably about 3.2 to about 4.0, so that the Zr:Cl ratio in said zirconium hydroxychloride is about 0.36 to about 0.25, preferably about 0.31 to about 0.25. The present invention also embraces methods of making such antiperspirant salts and aqueous solutions of such antiperspirant salts. The present invention further embraces topical compositions comprising a dermatologically acceptable carrier and a perspiration reducing effective amount of an aluminum-zirconium antiperspirant salt as described above.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: December 16, 2003
    Inventors: Yan-Fei Shen, Richard Oryszczak, Angel L. Carrillo
  • Patent number: 6649152
    Abstract: Disclosed are enhanced efficacy aluminum-zirconium antiperspirant salt compositions which exhibit an HPLC peak 5 area content of about 33% or more, preferably at least 45%, more preferably at least 50%, most preferably at least 55%. Especially preferred are aluminum-zirconium antiperspirant salt compositions which, in addition to the aforementioned high peak 5 content, also exhibit an HPLC peak 4 to peak 3 area ratio of at least 0.4, preferably at least 0.7. The aforementioned salt compositions will preferably have a metal (Al+Zr) to chloride (or anion) ratio of about 0.90 to about 1.00. Also disclosed are methods of making such antiperspirant salt compositions and aqueous solutions of such antiperspirant salt compositions. Further disclosed are topical compositions comprising a dermatologically acceptable carrier vehicle and a perspiration reducing effective amount of an aluminum-zirconium antiperspirant salt composition as described above.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: November 18, 2003
    Assignee: The Gillette Company
    Inventors: Angel L. Carrillo, Richard Oryszczak, Yan-Fei Shen
  • Publication number: 20030211060
    Abstract: Disclosed is an anhydrous topical antiperspirant composition comprising a dermatologically acceptable carrier and a perspiration reducing effective amount of a particulate antiperspirant salt suspended in the carrier. The antiperspirant salt comprises an aluminum-zirconium chlorohydrate having a metal to chloride ratio between about 0.9 and about 1.3. The composition also includes, separate from the antiperspirant salt, a stabilizing basic material in an amount sufficient to prevent degradation of the antiperspirant composition or to minimize acid odor. Also disclosed is a method of reducing perspiration from human skin by applying the aforementioned topical composition.
    Type: Application
    Filed: May 9, 2002
    Publication date: November 13, 2003
    Applicant: The Gillette Company
    Inventors: Yuling Yin, Jayant N. Sane, Yan-Fei Shen
  • Publication number: 20030148941
    Abstract: The invention generally relates to compositions and methods with tramadol and an opioid antagonist to enhance analgesic potency and/or attenuate one or more adverse effects of tramadol, including adverse side effect(s) in humans such as nausea, vomiting, dizziness, headache, sedation (somnolence) or pruritis. This invention relates to compositions and methods for selectively enhancing the analgesic potency of tramadol and simultaneously attenuating anti-analgesia, hyperalgesia, hyperexcitability, physical dependence and/or tolerance effects associated with the administration of tramadol. The methods of the present invention comprise administering to a subject an analgesic or subanalgesic amount of tramadol and an amount of excitatory opioid receptor antagonist such as naltrexone or nalmefene effective to enhance the analgesic potency of tramadol and attenuate the anti-analgesia, hyperalgesia, hyperexcitability, physical dependence and/or tolerance effects of tramadol.
    Type: Application
    Filed: March 12, 2002
    Publication date: August 7, 2003
    Inventors: Stanley M. Crain, Ke-Fei Shen, Barry Sherman, Mary Remien, Remi Barbier, Nadav Friedmann
  • Publication number: 20030021757
    Abstract: Disclosed are enhanced efficacy aluminum-zirconium antiperspirant salt compositions which exhibit an HPLC peak 5 area content of about 33% or more, preferably at least 45%, more preferably at least 50%, most preferably at least 55%. Especially preferred are aluminum-zirconium antiperspirant salt compositions which, in addition to the aforementioned high peak 5 content, also exhibit an HPLC peak 4 to peak 3 area ratio of at least 0.4, preferably at least 0.7. The aforementioned salt compositions will preferably have a metal (Al+Zr) to chloride (or anion) ratio of about 0.90 to about 1.00. Also disclosed are methods of making such antiperspirant salt compositions and aqueous solutions of such antiperspirant salt compositions. Further disclosed are topical compositions comprising a dermatologically acceptable carrier vehicle and a perspiration reducing effective amount of an aluminum-zirconium antiperspirant salt composition as described above.
    Type: Application
    Filed: May 3, 2002
    Publication date: January 30, 2003
    Applicant: The Gillette Company
    Inventors: Angel L. Carrillo, Richard Oryszczak, Yan-Fei Shen
  • Publication number: 20020173466
    Abstract: This invention relates to a method for treating a subject with irritable bowel syndrome (“IBS”) which comprises long-term administration of an opioid receptor antagonist at an appropriately low dose which will selectively antagonize excitatory opioid receptor functions, but not inhibitory opioid receptor functions, in myenteric neurons in the intestinal tract as well as in neurons of the central nervous system (“CNS”). The administration of the opioid receptor antagonist at a low dose enhances the potency of the inhibitory effects of endogenous opioid peptides present in the intestinal tract and the CNS, thereby reducing abdominal pain and stool frequency resulting from abnormally supersensitized excitatory opioid receptor functions. The invention also relates to a composition for treating a subject with IBS, which comprises an effective dose of an opioid receptor antagonist, and a pharmaceutically acceptable carrier.
    Type: Application
    Filed: April 3, 2002
    Publication date: November 21, 2002
    Inventors: Stanley M. Crain, Ke-Fei Shen, Gerald M. Fleischner
  • Publication number: 20020137761
    Abstract: The present invention provides a method for increasing analgesic potency of a bimodally-acting opioid agonist in a subject, by inhibiting GM1-ganglioside in nociceptive neurons. The present invention further provides a method for treating pain in a subject in need of treatment thereof. Also provided in the present invention is a method for treating chronic pain in a subject in need of treatment thereof. Additionally, the present invention provides a method for treating tolerance to or an addiction to a bimodally-acting opioid agonist in a subject in need of treatment thereof. Finally, the present invention provides a pharmaceutical composition of analgesic agents and a pharmaceutically-acceptable carrier.
    Type: Application
    Filed: March 19, 2002
    Publication date: September 26, 2002
    Inventors: Stanley M. Crain, Ke-Fei Shen
  • Patent number: 6436381
    Abstract: Disclosed are enhanced efficacy aluminum-zirconium antiperspirant salt compositions which exhibit an HPLC peak 5 area content of about 33% or more. Especially preferred are aluminum-zirconium antiperspirant salt compositions which, in addition to the aforementioned high peak 5 content, also exhibit an HPLC peak 4 to peak 3 area ratio of at least 0.4. The aforementioned salt compositions will preferably have a metal (Al+Zr) to chloride (or anion) ratio of about 0.90 to about 1.00. Also disclosed are methods of making such antiperspirant salt compositions and aqueous solutions of such antiperspirant salt compositions. Further disclosed are topical compositions comprising a dermatologically acceptable carrier vehicle and a perspiration reducing effective amount of an aluminum-zirconium antiperspirant salt composition as described above.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: August 20, 2002
    Assignee: The Gillette Company
    Inventors: Angel L. Carrillo, Richard Oryszczak, Yan-Fei Shen
  • Publication number: 20020094947
    Abstract: This invention relates to a method for selectively enhancing the analgesic potency of a bimodally-acting opioid agonist such as morphine and simultaneously attenuating anti-analgesia, hyperalgesia, hyperexcitability, physical dependence and/or tolerance effects associated with the administration of the bimodally-acting opioid agonist. The method of the present invention comprises administering to a subject an analgesic or sub-analgesic amount of a bimodally-acting opioid agonist such as morphine and an amount of an excitatory opioid receptor antagonist such as naltrexone or nalmefene effective to enhance the analgesic potency of the bimodally-acting opioid agonist and attenuate the anti-analgesia, hyperalgesia, hyperexcitability, physical dependence and/or tolerance effects of the bimodally-acting opioid agonist.
    Type: Application
    Filed: January 3, 2002
    Publication date: July 18, 2002
    Inventors: Stanley M. Crain, Ke-Fei Shen
  • Patent number: 6395705
    Abstract: This invention relates to a method for treating a subject with irritable bowel syndrome (“IBS”) which comprises long-term administration of an opioid receptor antagonist at an appropriately low dose which will selectively antagonize excitatory opioid receptor functions, but not inhibitory opioid receptor functions, in myenteric neurons in the intestinal tract as well as in neurons of the central nervous system (“CNS”). The administration of the opioid receptor antagonist at a low dose enhances the potency of the inhibitory effects of endogenous opioid peptides present in the intestinal tract and the CNS, thereby reducing abdominal pain and stool frequency resulting from abnormally supersensitized excitatory opioid receptor functions. The invention also relates to a composition for treating a subject with IBS, which comprises an effective dose of an opioid receptor antagonist, and a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: May 28, 2002
    Assignee: Albert Einstein College of Medicine of Yeshiva University
    Inventors: Stanley M. Crain, Ke-fei Shen, Gerald M. Fleischner
  • Patent number: 6362194
    Abstract: This invention relates to a method for selectively enhancing the analgesic potency of a bimodally-acting opioid agonist such as morphine and simultaneously attenuating anti-analgesia, hyperalgesia, hyperexcitability, physical dependence and/or tolerance effects associated with the administration of the bimodally-acting opioid agonist. The method of the present invention comprises administering to a subject an analgesic or sub-analgesic amount of a bimodally-acting opioid agonist such as morphine and an amount of an excitatory opioid receptor antagonist such as naltrexone or nalmefene effective to enhance the analgesic potency of the bimodally-acting opioid agonist and attenuate the anti-analgesia, hyperalgesia, hyperexcitability, physical dependence and/or tolerance effects of the bimodally-acting opioid agonist.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: March 26, 2002
    Assignee: Albert Einstein College of Medicine of Yeshiva University
    Inventors: Stanley M. Crain, Ke-fei Shen
  • Publication number: 20010018413
    Abstract: This invention relates to a method for treating a subject with irritable bowel syndrome (“IBS”) which comprises long-term administration of an opioid receptor antagonist at an appropriately low dose which will selectively antagonize excitatory opioid receptor functions, but not inhibitory opioid receptor functions, in myenteric neurons in the intestinal tract as well as in neurons of the central nervous system (“CNS”). The administration of the opioid receptor antagonist at a low dose enhances the potency of the inhibitory effects of endogenous opioid peptides present in the intestinal tract and the CNS, thereby reducing abdominal pain and stool frequency resulting from abnormally supersensitized excitatory opioid receptor functions. The invention also relates to a composition for treating a subject with IBS, which comprises an effective dose of an opioid receptor antagonist, and a pharmaceutically acceptable carrier.
    Type: Application
    Filed: January 4, 2001
    Publication date: August 30, 2001
    Inventors: Stanley M. Crain, Ke-fei Shen, Gerald M. Fleischner
  • Publication number: 20010006967
    Abstract: This invention relates to a method for selectively enhancing the analgesic potency of a bimodally-acting opioid agonist such as tramadol and simultaneously attenuating anti-analgesia, hyperalgesia, hyperexcitability, physical dependence and/or tolerance effects associated with the administration of the bimodally-acting opioid agonist. The method of the present invention comprises administering to a subject an analgesic or sub-analgesic amount of a bimodally-acting opioid agonist such as tramadol and an amount of an excitatory opioid receptor antagonist such as naltrexone or nalmefene effective to enhance the analgesic potency of the bimodally-acting opioid agonist and attenuate the anti-analgesia, hyperalgesia, hyperexcitability, physical dependence and/or tolerance effects of the bimodally-acting opioid agonist.
    Type: Application
    Filed: May 6, 1999
    Publication date: July 5, 2001
    Inventors: STANLEY M. CRAIN, KE-FEI SHEN
  • Patent number: 6245325
    Abstract: The present invention relates to enhanced efficacy antiperspirant salts containing calcium and an amino acid or a hydroxy acid and particularly to stabilized aqueous solutions of such salts. The present invention also embraces methods of making these antiperspirant salts and solutions and compositions containing same.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: June 12, 2001
    Assignee: The Gillette Company
    Inventor: Yan-Fei Shen
  • Patent number: 6194382
    Abstract: This invention relates to a method for eating a subject with irritable bowel syndrome (“IBS”) which comprises long-term administration of an opioid receptor antagonist at an appropriately low dose which will selectively antagonize excitatory opioid receptor functions, but not inhibitory opioid receptor functions, in myenteric neurons in the intestinal tract as well as in neurons of the central nervous system (“CNS”). The administration of the opioid receptor antagonist at a low dose enhances the potency of the inhibitory effects of endogenous opioid peptides present in the intestinal tract and the CNS, thereby reducing abdominal pain and stool frequency resulting from abnormally supersensitized excitatory opioid receptor functions. The invention also relates to a composition for treating a subject with IBS, which comprises an effective dose of an opioid receptor antagonist, and a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: February 27, 2001
    Assignee: Albert Einstein College of Medicine of Yeshiva University
    Inventors: Stanley M. Crain, Ke-fei Shen, Gerald M. Fleischner