Patents by Inventor Xue-Feng Pei

Xue-Feng Pei 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: 6894048
    Abstract: Substituted dihydrophthalazine sulfur containing compositions are provided which are active as non-NMDA ionotropic excitatory amino acid (EAA) receptor antagonists. The compositions are useful for treating disorders associated with excessive activation of the non-NMDA subtype of the ionotropic EAA receptor. The compounds further are useful as testing agents to identify and characterize other compounds for the treatment of these disorders. The compounds are useful therapeutically as sedatives or for the treatment of neuropsychopharmacological disorders such as stroke, ischemia and epilepsy. The compositions may be provided in combination with a suitable carrier for oral or parenteral administration. The compounds may be administered orally or parenterally for the treatment of a variety of disorders associated with non-NMDA EEA receptor function.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: May 17, 2005
    Assignee: Transgenomic, Inc.
    Inventors: Xue-Feng Pei, Baoqing Li, Maria-Luisa Maccecchini
  • Patent number: 6887867
    Abstract: Substituted benzodiazepine compositions are provided which are active as non-NMDA ionotropic excitatory amino acid (EAA) receptor antagonists. The compounds are generally 7- or 8-mono substituted 5H-2,3-benzodiazepines. The compositions are useful for treating disorders associated with excessive activation of the non-NMDA subtype of the ionotropic EAA receptor. The compounds further are useful as testing agents to identify and characterize other compounds for the treatment of these disorders. The compounds are useful therapeutically as sedatives or for the treatment of neurosychopharmacological disorders such as stroke, ischemia and epilepsy. The compositions may be provided in combination with a suitable carrier for oral or parenteral administration. The compounds may be administered orally or parenterally for the treatment of a variety of disorders associated with non-NMDA EEA receptor function.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: May 3, 2005
    Assignee: Transgenomic, Inc.
    Inventors: Xue-Feng Pei, Baoqing Li, Maria-Luisa Maccecchini
  • Publication number: 20040058928
    Abstract: Substituted dihydrophthalazine sulfur containing compositions are provided which are active as non-NMDA ionotropic excitatory amino acid (EAA) receptor antagonists. The compositions are useful for treating disorders associated with excessive activation of the non-NMDA subtype of the ionotropic EAA receptor. The compounds further are useful as testing agents to identify and characterize other compounds for the treatment of these disorders. The compounds are useful therapeutically as sedatives or for the treatment of neurosychopharmacological disorders such as stroke, ischemia and epilepsy. The compositions may be provided in combination with a suitable carrier for oral or parenteral administration. The compounds may be administered orally or parenterally for the treatment of a variety of disorders associated with non-NMDA EEA receptor function.
    Type: Application
    Filed: September 18, 2003
    Publication date: March 25, 2004
    Applicant: Annovis, Inc.
    Inventors: Xue-Feng Pei, Baoqing Li, Maria-Luisa MacCecchini
  • Patent number: 6703390
    Abstract: Substituted dihydrophthalazine sulfur containing compositions are provided which are active as non-NMDA ionotropic excitatory amino acid (EAA) receptor antagonists. The compositions are useful for treating disorders associated with excessive activation of the non-NMDA subtype of the ionotropic EAA receptor. The compounds further are useful as testing agents to identify and characterize other compounds for the treatment of these disorders. The compounds are useful therapeutically as sedatives or for the treatment of neurosychopharmacological disorders such as stroke, ischemia and epilepsy. The compositions may be provided in combination with a suitable carrier for oral or parenteral administration. The compounds may be administered orally or parenterally for the treatment of a variety of disorders associated with non-NMDA EEA receptor function.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: March 9, 2004
    Assignee: Transgenomic, Inc.
    Inventors: Xue-Feng Pei, Baoqing Li, Maria-Luisa Maccecchini
  • Publication number: 20020188022
    Abstract: Disclosed is a method for inhibiting, stimulating, modulating, or regulating glutamate reuptake. The method makes use of compounds that are ligands of glutamate receptors, including many agonists, or antagonists of glutamate receptors. It has been discovered that such compounds can bind to or modulate glutamate transporters and affect extracellular glutamate levels by affecting transporter activity. The disclosed compounds can have a variety of effects on glutamate transporter activity including activation or inhibition. Such compounds are useful to treat various neurological diseases and conditions involving glutamate transporter and glutamate receptor activation. For example, excess extracellular glutamate is a cause of excessive activation of glutamate receptors. Stimulating glutamate reuptake by glutamate transporters can ameliorate excessive activation of glutamate receptors by reducing the extracellular glutamate concentration. Prodrug forms of transporter compounds can be used as drugs.
    Type: Application
    Filed: October 30, 2001
    Publication date: December 12, 2002
    Applicant: Annovis. Inc.
    Inventors: Maria-Luisa Maccecchini, Xue-Feng Pei
  • Publication number: 20020115721
    Abstract: Disclosed are prodrug compounds of a class of alkyl carboxy amino acid analogs of glutamic acid that act as specific regulators of the kainate EAA receptor cation channel. These compounds are useful for treating neurological, neuropsychological, neuropsychiatric, neurodegenerative, neuropsychopharmacological and functional disorders associated with excessive or insufficient activation of the kainate subtype of the ionotropic EAA receptors; treating cognitive disorders associated with deactivation, suboptimal activation or over-activation of the kainate receptor; alleviating pain and improving and enhancing memory, learning, and associated mental processes.
    Type: Application
    Filed: October 30, 2001
    Publication date: August 22, 2002
    Applicant: Annovis, Inc.
    Inventors: Xue-Feng Pei, Maria-Luisa Maccecchini
  • Publication number: 20020025958
    Abstract: Substituted benzodiazepine compositions are provided which are active as non-NMDA ionotropic excitatory amino acid (EAA) receptor antagonists. The compounds are generally 7- or 8-mono substituted 5H-2,3-benzodiazepines. The compositions are useful for treating disorders associated with excessive activation of the non-NMDA subtype of the ionotropic EAA receptor. The compounds further are useful as testing agents to identify and characterize other compounds for the treatment of these disorders. The compounds are useful therapeutically as sedatives or for the treatment of neurosychopharmacological disorders such as stroke, ischemia and epilepsy. The compositions may be provided in combination with a suitable carrier for oral or parenteral administration. The compounds may be administered orally or parenterally for the treatment of a variety of disorders associated with non-NMDA EEA receptor function.
    Type: Application
    Filed: June 15, 2001
    Publication date: February 28, 2002
    Inventors: Xue-Feng Pei, Baoqing Li, Maria-Luisa Maccecchini
  • Publication number: 20020006925
    Abstract: Substituted dihydrophthalazine sulfur containing compositions are provided which are active as non-NMDA ionotropic excitatory amino acid (EAA) receptor antagonists. The compositions are useful for treating disorders associated with excessive activation of the non-NMDA subtype of the ionotropic EAA receptor. The compounds further are useful as testing agents to identify and characterize other compounds for the treatment of these disorders. The compounds are useful therapeutically as sedatives or for the treatment of neurosychopharmacological disorders such as stroke, ischemia and epilepsy. The compositions may be provided in combination with a suitable carrier for oral or parenteral administration. The compounds may be administered orally or parenterally for the treatment of a variety of disorders associated with non-NMDA EEA receptor function.
    Type: Application
    Filed: April 12, 2001
    Publication date: January 17, 2002
    Inventors: Xue-Feng Pei, Baoqing Li, Maria-Luisa Maccecchini