Patents by Inventor David H Igo

David H Igo 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: 20180029986
    Abstract: Disclosed are novel polymorphic solvated and desolvated forms of the sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)-phenyl]-benzenesulfonamide and pharmaceutical compositions containing the same. Also disclosed are processes for the preparation thereof and methods for use thereof.
    Type: Application
    Filed: September 29, 2017
    Publication date: February 1, 2018
    Inventors: Joanna BIS, David H. IGO
  • Patent number: 9809548
    Abstract: Disclosed are novel polymorphic solvated and desolvated forms of the sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)phenyl]-benzenesulfonamide. One embodiment of the present invention is directed to a crystalline sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)-phenyl]benzenesulfonamide (hereinafter “Compound A-1,4-dioxane/water solvate”), wherein the crystalline form is characterized by an X-ray powder diffraction pattern comprising diffraction angles (°28), when measured using Cu Ku radiation, at about 4.0, 8.1, 10.1, 14.2, 16.2, 18.6, 20.3, 24.7, 25.0, and 26.5.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: November 7, 2017
    Assignee: ChemoCentryx, Inc.
    Inventors: Joanna Bis, David H. Igo
  • Patent number: 9643950
    Abstract: The invention in one embodiment is directed to solid forms of {S-3-(4-Amino-1-oxo-isoindolin-2-yl)(piperidine-3,4,4,5,5-d5)-2,6-dione}, including an anhydrous crystalline form, two hydrates, and an amorphous form. The invention in one embodiment is directed to methods of preparation of the solid forms.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: May 9, 2017
    Assignee: Concert Pharmaceuticals, Inc.
    Inventors: Joanna A. Bis, David H. Igo
  • Publication number: 20170022161
    Abstract: Disclosed are novel polymorphic solvated and desolvated forms of the sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)phenyl]-benzenesulfonamide. One embodiment of the present invention is directed to a crystalline sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)-phenyl]benzenesulfonamide (hereinafter “Compound A-1,4-di-oxane/water solvate”), wherein the crystalline form is characterized by an X-ray powder diffraction pattern comprising diffraction angles (°28), when measured using Cu Ku radiation, at about 4.0, 8.1, 10.1, 14.2, 16.2, 18 6, 20.3, 24.7, 25.0, and 26.5.
    Type: Application
    Filed: October 10, 2016
    Publication date: January 26, 2017
    Inventors: Joanna BIS, David H. IGO
  • Patent number: 9493417
    Abstract: Disclosed are novel novel polymorphic solvated and desolvated forms of the sodium salt of 4-tert-butyl-N-[chloro-2-(1-oxy-pyridine-4-carbonyl)phenyl]-benzenesulfonamide. One embodiment of the present invention is directed to a crystalline sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)-phenyl]benzenesulfonamide (hereinafter “Compound A-1,4-dioxane/water solvate”), wherein the crystalline form is characterized by an X-ray powder diffraction pattern comprising diffraction angles (° 28), when measured using Cu Ku radiation, at about 4.0, 8.1, 10.1, 14.2, 16.2, 18.6, 20.3, 24.7, 25.0, and 26.5.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: November 15, 2016
    Assignee: ChemoCentryx, Inc.
    Inventors: Joanna Bis, David H. Igo
  • Patent number: 9464054
    Abstract: Disclosed are novel polymorphic trihydrated forms of the sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)-phenyl]benzenesulfonamide. One embodiment of the present invention is directed to a crystalline form of the sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)-25 phenyl]-benzenesulfonamide (hereinafter “Compound A_crystalline trihydrate form I”), wherein the crystalline form is characterized by an X-ray powder diffraction pattern comprising diffraction angles (°28), when measured using Cu Ka radiation, at about 4.5, 9.0, 13.6, 13.9, 15.8, 17.8, 18.2, 18.5, 19.1, 19.9, 20A, 21.2, 22.1, 22.7, 24.3, 25.0, 25.6, 26.2, 26.8, 27.3, 27.6, 28.0, 28.8, and 30.8.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: October 11, 2016
    Assignee: ChemoCentryx, Inc.
    Inventors: Joanna Bis, David H. Igo, Bert Ho, Deven Shah
  • Publication number: 20160039763
    Abstract: Disclosed are novel novel polymorphic solvated and desolvated forms of the sodium salt of 4-tert-butyl-N-[chloro-2-(1-oxy-pyridine-4-carbonyl-phenyl]-benzenesulfonamide. One embodiment of the present invention is directed to a crystalline sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)-phenyl]benzenesulfonamide (hereinafter “Compound A-1,4-dioxane/water solvate”), wherein the crystalline form is characterized by an X-ray powder diffraction pattern comprising diffraction angles (° 28), when measured using Cu Ku radiation, at about 4.0, 8.1, 10.1, 14.2, 16.2, 18.6, 20.3, 24.7, 25.0, and 26.5.
    Type: Application
    Filed: August 21, 2015
    Publication date: February 11, 2016
    Inventors: Joanna BIS, David H. IGO
  • Publication number: 20160039762
    Abstract: Disclosed are novel polymorphic trihydrated forms of the sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)-phenyl]benzenesulfonamide. One embodiment of the present invention is directed to a crystalline form of the sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)-25 phenyl]-benzenesulfonamide (hereinafter “Compound A_crystalline trihydrate form I”), wherein the crystalline form is characterized by an X-ray powder diffraction pattern comprising diffraction angles (°28), when measured using Cu Ka radiation, at about 4.5, 9.0, 13.6, 13.9, 15.8, 17.8, 18.2, 18.5, 19.1, 19.9, 20A, 21.2, 22.1, 22.7, 24.3, 25.0, 25.6, 26.2, 26.8, 27.3, 27.6, 28.0, 28.8, and 30.8.
    Type: Application
    Filed: August 12, 2015
    Publication date: February 11, 2016
    Inventors: Joanna BIS, David H. IGO, Bert HO, Deven SHAH
  • Publication number: 20150299162
    Abstract: The invention in one embodiment is directed to solid forms of {S-3-(4-Amino-1-oxo-isoindolin-2-yl)(piperidine-3,4,4,5,5-d5)-2,6-dione}, including an anhydrous crystalline form, two hydrates, and an amorphous form. The invention in one embodiment is directed to methods of preparation of the solid forms.
    Type: Application
    Filed: October 21, 2013
    Publication date: October 22, 2015
    Inventors: Joanna A. BIS, David H. IGO
  • Patent number: 9150513
    Abstract: Disclosed are novel polymorphic solvated and desolvated forms of the sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)phenyl]-benzenesulfonamide. One embodiment of the present invention is directed to a crystalline sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)-phenyl]benzenesulfonamide (hereinafter “Compound A-1,4-dioxane/water solvate”), wherein the crystalline form is characterized by an X-ray powder diffraction pattern comprising diffraction angles (° 28), when measured using Cu Ku radiation, at about 4.0, 8.1, 10.1, 14.2, 16.2, 18.6, 20.3, 24.7, 25.0, and 26.5.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: October 6, 2015
    Assignee: ChemoCentryx, Inc.
    Inventors: Joanna Bis, David H. Igo
  • Patent number: 9139526
    Abstract: Disclosed are novel polymorphic trihydrated forms of the sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)-phenyl]benzenesulfonamide. One embodiment of the present invention is directed to a crystalline form of the sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)-25 phenyl]-benzenesulfonamide (hereinafter “Compound A crystalline trihydrate form I”), wherein the crystalline form is characterized by an X-ray powder diffraction pattern comprising diffraction angles (°28), when measured using Cu Ka radiation, at about 4.5, 9.0, 13.6, 13.9, 15.8, 17.8, 18.2, 18.5, 19.1, 19.9, 20A, 21.2, 22.1, 22.7, 24.3, 25.0, 25.6, 26.2, 26.8, 27.3, 27.6, 28.0, 28.8, and 30.8.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: September 22, 2015
    Assignee: ChemoCentryx, Inc.
    Inventors: Joanna Bis, David H. Igo, Bert Ho, Deven Shah
  • Publication number: 20140171473
    Abstract: Disclosed are novel novel polymorphic solvated and desolvated forms of the sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)phenyl]-benzenesulfonamide. One embodiment of the present invention is directed to a crystalline sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)-phenyl]benzenesulfonamide (hereinafter “Compound A-1,4-dioxane/water solvate”), wherein the crystalline form is characterized by an X-ray powder diffraction pattern comprising diffraction angles (° 28), when measured using Cu Ku radiation, at about 4.0,8.1, 10.1, 14.2, 16.2, 18.6,20.3,24.7,25.0, and 26.5.
    Type: Application
    Filed: July 20, 2012
    Publication date: June 19, 2014
    Applicant: CHEMOCENTRYX, INC.
    Inventors: Joanna Bis, David H. Igo
  • Publication number: 20140155438
    Abstract: Disclosed are novel polymorphic trihydrated forms of the sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)-phenyl] benzenesulfonamide. One embodiment of the present invention is directed to a crystalline form of the sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)-25 phenyl]-benzenesulfonamide (hereinafter “Compound A _ crystal-line trihydrate form I”), wherein the crystalline form is characterized by an X-ray powder diffraction pattern comprising diffraction angles (°28), when measured using Cu Ka radiation, at about 4.5, 9.0, 13.6, 13.9, 15.8, 17.8, 18.2, 18.5, 19.1, 19.9, 20A, 21.2, 22.1, 22.7, 24.3, 25.0, 25.6, 26.2, 26.8, 27.3, 27.6, 28.0, 28.8, and 30.8.
    Type: Application
    Filed: July 20, 2012
    Publication date: June 5, 2014
    Applicant: CHEMOCENTRYX, INC.
    Inventors: Joanna Bis, David H. Igo, Bert Ho, Deven Shah
  • Publication number: 20130324564
    Abstract: The present invention provides individual crystalline polymorphs of (S)-1-(4,4,6, 6,6-pentadeutero-5-hydroxy-hexyl)-3,7-dimethyl-1H-purine-2,6(3H,7H)-dione designated Form 1, Form 2, Form 3 and Form 4. Each polymorph disclosed herein is characterized according to one or more of (a) powder X-ray diffraction data (“XRPD”); (b) differential scanning calorimetry (“DSC”); and (e) thermo gravimetric analysis (TGA).
    Type: Application
    Filed: September 1, 2011
    Publication date: December 5, 2013
    Applicant: CONCERT PHARMACEUTICALS, INC.
    Inventors: Joanna A. Bis, David H. Igo, David J. Turnquist
  • Publication number: 20110112145
    Abstract: Disclosed are salts of methyl 2-((R)-(3-chlorophenyl)((R)-1-((S)-2-(methylamino)-3-((R)-tetrahydro-2H-pyran-3-yl)propylcarbamoyl)piperidin-3-yl)methoxy)ethylcarbamate and pharmaceutical compositions containing the same. Also disclosed are processes for the preparation thereof and methods for use thereof.
    Type: Application
    Filed: June 24, 2009
    Publication date: May 12, 2011
    Inventors: Nicole Marie Deschamps, David H. Igo, Mark Bryan Mitchell
  • Patent number: 7750036
    Abstract: The present invention relates to a salt of carvedilol and/or corresponding solvates thereof, compositions containing such carvedilol and/or corresponding solvates thereof, and/or methods of using the aforementioned compound(s) in the treatment of certain disease states in mammals, in particular man. The present invention further relates to carvedilol phosphate salts, and/or solvates thereof, which include a novel crystalline form of carvedilol dihydrogen phosphate (i.e., which is the dihydrogen phosphate salt of 1-(carbazol-4-yloxy-3-[[2-(o-methoxyphenoxy)ethyl]amino]-2-propanol) and/or carvedilol hydrogen phosphate, etc.) and/or other corresponding solvates thereof, compositions containing these carvedilol phosphate salts and/or solvates, and methods of using the aforementioned salts and/or solvates to treat hypertension, congestive heart failure and angina, etc.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: July 6, 2010
    Assignee: SB Pharmco Puerto Rico Inc.
    Inventors: Christopher S. Brook, Pingyun Y. Chen, Wei Chen, Qunying Dai, Philip C. Dell'Orco, Clifford S. Labaw, Ann Marie Diederich, Choon K. Oh, Claire Hisler, David H. Igo, Lee M. Katrincic, Li-Jen Ping, Paul G. Spoors, Jun Wang, Christopher Werner
  • Patent number: 7649010
    Abstract: The present invention relates to a salt of carvedilol, corresponding compositions containing such a carvedilol salt or corresponding solvates thereof, and/or methods of using the aforementioned compound(s) in the treatment of certain disease states in mammals, in particular man. The present invention further relates to a novel crystalline form of carvedilol hydrobromide, which is the hydrobromide salt of 1-(carbazol-4-yloxy-3-[[2-(o-methoxyphenoxy)ethyl]amino]-2-propanol, and/or other carvedilol solvates thereof, compositions containing salts or solvates of carvedilol hydrobromide, and methods of using the aforementioned compound(s) to treat hypertension, congestive heart failure, and angina, etc.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: January 19, 2010
    Assignee: SmithKline Beechman Cork Limited
    Inventors: Pingyun Y. Chen, Qunying Dai, Philip C. Dell'Orco, Claire Hisler, David H. Igo, Lee M. Katrincic, Clifford S. Labaw, Li-Jen J. Ping
  • Patent number: 7462641
    Abstract: The present invention includes anhydrous crystalline forms of (2S,4S)-4-fluoro-1-[4-fluoro-?-(4-fluorophenyl)-L-phenylalanyl]-2-pyrrolidinecarbonitrile p-toluenesulfonic acid salt.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: December 9, 2008
    Assignee: SmithKline Beecham Corporation
    Inventors: David H Igo, Paul R Johnson, Daniel E Patterson, Amarjit Sab Randhawa
  • Publication number: 20080269342
    Abstract: The invention is directed to the L-tartrate salt of trans-3-aminocyclobutyl (1S,2R,3S,4S,6R,7R,8,14R)-4-ethenyl-3-hydroxy-2,4,7,14-tetramethyl-9-oxotricyclo[5.4.3.01,8]tetradec-6-yl imidodicarbonate (Compound IA.) Compound IA is useful for the treatment of a variety of diseases and conditions, such as respiratory tract and skin and skin structure infections. Accordingly, the invention is further directed to pharmaceutical compositions comprising Compound IA. The invention is still further directed to methods of treating respiratory tract and skin and skin structure infections using Compound IA or a pharmaceutical composition comprising Compound IA.
    Type: Application
    Filed: November 18, 2006
    Publication date: October 30, 2008
    Inventors: David H. Igo, Beth A. Norton