Patents by Inventor David R. Weyna

David R. Weyna 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).

  • Crystalline molecular complex of tadalafil and methylparaben
    Patent number: 8586587
    Abstract: The invention relates to novel crystalline forms of tadalafil suitable for pharmaceutical compositions in drug delivery systems for humans. More particularly, the invention relates to crystalline molecular complexes of tadalafil and methylparaben.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: November 19, 2013
    Assignee: Thar Pharmaceuticals, Inc.
    Inventors: Mazen Hanna, Ning Shan, Miranda L. Cheney, David R. Weyna
  • In vivo studies of crystalline forms of meloxicam
    Patent number: 8389512
    Abstract: The invention is directed to novel crystalline forms of meloxicam. These novel crystalline forms of meloxicam have improved bioavailability, an enhanced rate of dissolution and shorter time to Cmax in blood, as compared to pure meloxicam.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: March 5, 2013
    Assignee: Thar Pharmaceuticals
    Inventors: Mazen Hanna, Ning Shan, Miranda L. Cheney, David R. Weyna
  • CRYSTALLIZATION METHOD AND BIOAVAILABILITY
    Publication number: 20130035315
    Abstract: Preparation and in vitro and in vivo characterization of novel forms of active pharmaceutical ingredients, suitable for pharmaceutical compositions in drug delivery systems for humans.
    Type: Application
    Filed: August 6, 2012
    Publication date: February 7, 2013
    Inventors: Mazen HANNA, Ning SHAN, Miranda L. CHENEY, David R. WEYNA, Raymond HOUCK
  • In Vivo Studies of Crystalline Forms of Meloxicam
    Publication number: 20120149692
    Abstract: The invention is directed to novel crystalline forms of meloxicam. These novel crystalline forms of meloxicam have improved bioavailability, an enhanced rate of dissolution and shorter time to Cmax in blood, as compared to pure meloxicam.
    Type: Application
    Filed: February 17, 2012
    Publication date: June 14, 2012
    Applicant: THAR PHARMACEUTICALS
    Inventors: Mazen Hanna, Ning Shan, Miranda L. Cheney, David R. Weyna
  • In vivo studies of crystalline forms of meloxicam
    Patent number: 8124603
    Abstract: The invention is directed to novel crystalline forms of meloxicam. These novel crystalline forms of meloxicam have improved bioavailability, an enhanced rate of dissolution and shorter time to Cmax in blood, as compared to pure meloxicam.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: February 28, 2012
    Assignee: Thar Pharmaceuticals
    Inventors: Mazen Hanna, Ning Shan, Miranda L. Cheney, David R. Weyna
  • CRYSTALIZATION OF PHARMACEUTICAL COMPOUNDS
    Publication number: 20120046297
    Abstract: Novel crystalline forms of tadalafil suitable for pharmaceutical compositions in drug delivery systems for humans.
    Type: Application
    Filed: February 25, 2010
    Publication date: February 23, 2012
    Inventors: Mazen Hanna, Ning Shan, Miranda L. Cheney, David R. Weyna
  • In vivo studies of crystalline forms of meloxicam
    Publication number: 20090203680
    Abstract: The invention is directed to novel crystalline forms of meloxicam. These novel crystalline forms of meloxicam have improved bioavailability, an enhanced rate of dissolution and shorter time to Cmax in blood, as compared to pure meloxicam.
    Type: Application
    Filed: January 22, 2009
    Publication date: August 13, 2009
    Applicant: Thar Pharmaceuticals
    Inventors: Mazen Hanna, Ning Shan, Miranda L. Cheney, David R. Weyna