Patents by Inventor Stephan D. Parent

Stephan D. Parent 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: 8846731
    Abstract: Disclosed herein are new salts and polymorphs of desazadesferrithiocin polyether (DADFT-PE) analogs, as well as pharmaceutical compositions comprising them and their application as metal chelation agents for the treatment of disease. Methods of chelation of iron and other metals in a human or animal subject are also provided for the treatment of metal overload and toxicity.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: September 30, 2014
    Assignee: FerroKin Biosciences, Inc.
    Inventors: Amy E. Tapper, Hugh Y. Rienhoff, Jr., Stephan D. Parent, Patricia Andres, Jason A. Hanko, Huamin Zhang
  • Patent number: 8829197
    Abstract: Disclosed herein are new salts and polymorphs of desazadesferrithiocin polyether (DADFT-PE) analogues, as well as pharmaceutical compositions comprising them and their application as metal chelation agents for the treatment of disease. Methods of chelation of iron and other metals in a human or animal subject are also provided for the treatment of metal overload and toxicity.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: September 9, 2014
    Assignee: FerroKin Biosciences, Inc.
    Inventors: Amy E. Tapper, Hugh Y. Rienhoff, Jr., Stephan D. Parent, Patricia Andres, Jason A. Hanko, Huamin Zhang
  • Patent number: 8815888
    Abstract: The present invention relates to new rifaximin forms kappa, theta, rifaximin:piperazine cocrystal 1 and rifaximin:piperazine cocrystal 2, methods of making same and to their use in medicinal preparations and therapeutic methods.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: August 26, 2014
    Assignee: Salix Pharmaceuticals, Ltd.
    Inventors: Yiduo Wu, Stephan D. Parent, Nathan Carl Schultheiss, Melanie Janelle Bevill, Petinka Vlahova, Travis L. Houston
  • Patent number: 8735419
    Abstract: Embodiments relate to Rifaximin polymorphic, salt, and hydrate forms, methods of producing polymorphic forms and to their use in medicinal preparations and to therapeutic methods using them.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: May 27, 2014
    Assignee: Salix Pharmaceuticals, Ltd.
    Inventors: Stephan D. Parent, Lisa L. McQueen, Patricia Andres, Paul Schields, Yiduo Wu, Fei Ding, Jared P. Smit
  • Patent number: 8710087
    Abstract: Disclosed herein are new salts and polymorphs of desazadesferrithiocin polyether (DADFT-PE) analogues, as well as pharmaceutical compositions comprising them and their application as metal chelation agents for the treatment of disease. Methods of chelation of iron and other metals in a human or animal subject are also provided for the treatment of metal overload and toxicity.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: April 29, 2014
    Assignee: Ferrokin Biosciences, Inc.
    Inventors: Amy E. Tapper, Hugh Y. Rienhoff, Jr., Stephan D. Parent, Patricia Andres, Jason A. Hanko, Huamin Zhang
  • Patent number: 8633243
    Abstract: A triterpenoid compound, methyl 2-cyano-3,12-dioxoleana-1,9(11)-dien-28-oate (CDDO methyl ester), has a non-crystalline, glassy solid form and a non-hydrous crystalline form that can prepared, for example, from a saturated methanol solution. The glassy form displays an enhanced bioavailability over the non-hydrous crystalline form. Each form of CDDO methyl ester is a superior candidate for use, typically in solid dosage form, for treating a variety of disease states, generally associated with inflammation.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: January 21, 2014
    Assignee: Reata Pharmaceuticals, Inc.
    Inventors: John Walling, Stephan D. Parent, David T. Jonaitis, Robert M. Kral, Jr.
  • Publication number: 20140010761
    Abstract: This invention relates to a novel crystalline polymorph of hexyl-5-aminolevulinate hydrochloride, referred to hereinafter as Form C, which is useful as precursor of a photo sensitizer in the photodynamic diagnosis and treatment of metabolically active cells related to diseases such as cancer of the uterus, cervix, vagina, rectum, colon, lower gastrointestinal tract; infection associated with cancer caused by human papilloma virus; non-cancerous lower gastrointestinal tract a human; inflammatory bowel disease; ulcerative colitis; Crohn's disease; inflammatory bowel syndrome; dysplasia of the female reproductive system; anus; penis; rosacea; and acne and which is suitable for use as the active ingredient of a commercial pharmaceutical product. The invention relates further to methods of preparing Form C and using it in the described pharmaceutical compositions.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 9, 2014
    Applicant: PHOTOCURE ASA
    Inventors: Stephan D. Parent, Jon Erik Braenden
  • Publication number: 20130317225
    Abstract: The present invention relates to new rifaximin forms kappa, theta, rifaximin:piperazine cocrystal 1 and rifaximin:piperazine cocrystal 2, methods of making same and to their use in medicinal preparations and therapeutic methods.
    Type: Application
    Filed: July 31, 2013
    Publication date: November 28, 2013
    Inventors: Yiduo Wu, Stephan D. Parent, Nathan Carl Schultheiss, Melanie Janelle Bevill, Petinka Vlahova, Travis L. Houston
  • Patent number: 8592600
    Abstract: The invention relates to crystalline forms of racemic ilaprazole, 2[[(4-methoxy-3-methyl-2-pyridinyl)-methyl]sulfinyl]-5-(1H-pyrrol-1-yl) 1H-Benzimidazole. The invention also relates to a pharmaceutical composition for inhibiting gastric acid secretion comprising a crystalline Form of ilaprazole according to the invention in an amount effective to inhibit gastric acid secretion and a pharmaceutically acceptable carrier. The invention also provides methods of treatment for various acid-related gastrointestinal (GI) disorders.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: November 26, 2013
    Assignee: Il Yang Pharmaceutical Company, Ltd.
    Inventors: John M. Brackett, David T. Jonaitis, Wei Lai, Jih Hua Liu, Stephan D. Parent, Jinyu Shen
  • Patent number: 8592599
    Abstract: The invention relates to crystalline forms of racemic ilaprazole, 2[[(4-methoxy-3-methyl-2-pyridinyl)-methyl]sulfinyl]-5-(1H-pyrrol-1-yl)1H-Benzimidazole. The invention also relates to a pharmaceutical composition for inhibiting gastric acid secretion comprising a crystalline Form of ilaprazole according to the invention in an amount effective to inhibit gastric acid secretion and a pharmaceutically acceptable carrier. The invention also provides methods of treatment for various acid-related gastrointestinal (GI) disorders.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: November 26, 2013
    Assignee: Il Yang Pharmaceutical Company, Ltd.
    Inventors: John M. Brackett, David T. Jonaitis, Wei Lai, Jih Hua Liu, Stephan D. Parent, Jinyu Shen
  • Publication number: 20130310409
    Abstract: Embodiments relate to Rifaximin polymorphic, salt, and hydrate forms, methods of producing polymorphic forms and to their use in medicinal preparations and to therapeutic methods using them.
    Type: Application
    Filed: July 24, 2013
    Publication date: November 21, 2013
    Inventors: Stephan D. Parent, Lisa Lynn McQueen, Patricia Andres, Paul Schields, Yiduo Wu, Fei Ding, Jared Peters Smit
  • Patent number: 8519002
    Abstract: Disclosed are new colchicine solid complexes, methods of making the solid complexes as well as formulations prepared therefrom and uses thereof.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: August 27, 2013
    Assignee: Takeda Pharmaceuticals U.S.A., Inc.
    Inventors: Tong Sun, David Jonaitis, Stephan D. Parent
  • Patent number: 8513275
    Abstract: The present invention relates to new rifaximin forms kappa, theta, rifaximin:piperazine cocrystal 1 and rifaximin:piperazine cocrystal 2, methods of making same and to their use in medicinal preparations and therapeutic methods.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: August 20, 2013
    Assignee: Salix Pharmaceuticals, Ltd
    Inventors: Yiduo Wu, Stephan D. Parent, Nathan Carl Schultheiss, Melanie Janelle Bevill, Petinka Vlahova, Travis L. Houston
  • Patent number: 8507517
    Abstract: Embodiments relate to Rifaximin polymorphic, salt, and hydrate forms, methods of producing polymorphic forms and to their use in medicinal preparations and to therapeutic methods using them.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: August 13, 2013
    Assignee: Salix Pharmaceuticals, Ltd
    Inventors: Stephan D. Parent, Lisa Lynn McQueen, Patricia Andres, Paul Schields, Yiduo Wu, Fei Ding, Jared Peters Smit
  • Patent number: 8361971
    Abstract: Disclosed herein are tablets comprising ezatiostat hydrochloride wherein the ezatiostat hydrochloride comprises from about 75 to about 82 percent by weight of the tablet.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: January 29, 2013
    Assignee: Telik, Inc.
    Inventors: Robert T. Lum, Stephan D. Parent, Chunsheng Qiao, Steven R. Schow
  • Publication number: 20120330050
    Abstract: A triterpenoid compound, methyl 2-cyano-3,12-dioxoleana-1,9(11)-dien-28-oate (CDDO methyl ester), has a non-crystalline, glassy solid form and a non-hydrous crystalline form that can prepared, for example, from a saturated methanol solution. The glassy form displays an enhanced bioavailability over the non-hydrous crystalline form. Each form of CDDO methyl ester is a superior candidate for use, typically in solid dosage form, for treating a variety of disease states, generally associated with inflammation.
    Type: Application
    Filed: June 29, 2012
    Publication date: December 27, 2012
    Inventors: John WALLING, Stephan D. Parent, David T. Jonaitis, Robert M. Kral, JR.
  • Patent number: 8309601
    Abstract: A triterpenoid compound, methyl 2-cyano-3,12-dioxoleana-1,9(11)-dien-28-oate (CDDO methyl ester), has a non-crystalline, glassy solid form and a non-hydrous crystalline form that can prepared, for example, from a saturated methanol solution. The glassy form displays an enhanced bioavailability over the non-hydrous crystalline form. Each form of CDDO methyl ester is a superior candidate for use, typically in solid dosage form, for treating a variety of disease states, generally associated with inflammation.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: November 13, 2012
    Assignee: Reata Pharmaceuticals, Inc.
    Inventors: John Walling, Stephan D. Parent, David T. Jonaitis, Robert M. Kral, Jr.
  • Publication number: 20120270911
    Abstract: Disclosed herein are new salts and polymorphs of desazadesferrithiocin polyether (DADFT-PE) analogues, as well as pharmaceutical compositions comprising them and their application as metal chelation agents for the treatment of disease. Methods of chelation of iron and other metals in a human or animal subject are also provided for the treatment of metal overload and toxicity.
    Type: Application
    Filed: October 6, 2011
    Publication date: October 25, 2012
    Applicant: FERROKIN BIOSCIENCES, INC.
    Inventors: Amy E. Tapper, Hugh Y. Rienhoff, Jr., Stephan D. Parent, Patricia Andres, Jason A. Hanko, Huamin Zhang
  • Publication number: 20120264774
    Abstract: Embodiments relate to Rifaximin polymorphic, salt, and hydrate forms, methods of producing polymorphic forms and to their use in medicinal preparations and to therapeutic methods using them.
    Type: Application
    Filed: June 22, 2012
    Publication date: October 18, 2012
    Inventors: Stephan D. Parent, Lisa L. McQueen, Patricia Andres, Paul Schields, Yiduo Wu, Fei Ding, Jared P. Smit
  • Patent number: 8258155
    Abstract: Disclosed are new quinine sulfate/bisulfate solid complexes, methods of making the solid complexes as well as formulations prepared therefrom and uses thereof.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: September 4, 2012
    Assignee: Mutual Pharmaceutical Company, Inc.
    Inventors: Tong Sun, Shawn Watson, Wei Lai, Stephan D. Parent