Patents by Inventor Dafydd Rhys Owen

Dafydd Rhys Owen 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: 20190071448
    Abstract: A compound compound having the structure: or a pharmaceutically acceptable salt thereof, or a pharmaceutically acceptable solvate of said compound or pharmaceutically acceptable salt, wherein A, A? and A? are independently O, C?O, C—R? or N—R?, where R? and R? may independently be H, amino, —NR7COR6, COR6, —CONR7R8, C1-C6 alkyl, or hydroxy(C1-C6 alkyl), and R? may be present or absent, and is present where the rules of valency permit, and where not more than one of A, A? and A? is O or C?O; R0 and R are independently H, Br, Cl, F, or C1-C6 alkyl; R1 is H, C1-C6 alkyl, or hydroxy(C1-C6 alkyl); R2 is selected from the group consisting of H, C1-C6 alkyl, C1-C6 alkoxy, hydroxy(C1-C6 alkyl), phenyl(C1-C6 alkyl), formyl, heteroaryl, heterocyclic, —COR6, —OCOR6, —COOR6, —NR7COR6, —CONR7R8, and —(CH2)n—W, where W is cyano, hydroxy, C3-C8 cycloalkyl, —SO2NR7R8, and —SO2—R9, where R9 is C1-C6 alkyl, C3-C8 cycloalkyl, heteroaryl, or heterocyclic; wherein each of said alkyl, cycloalkyl, heterocyclic, or heteroaryl ma
    Type: Application
    Filed: November 6, 2018
    Publication date: March 7, 2019
    Applicant: Pfizer Inc.
    Inventors: Matthew Frank BROWN, Alpay DERMENCI, Andrew FENSOME, Brian Stephen GERSTENBERGER, Matthew Merrill HAYWARD, Dafydd Rhys OWEN, Stephen Wayne WRIGHT, Li Huang XING, Xiaojing YANG
  • Patent number: 10174000
    Abstract: Compounds, tautomers and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula Ia, as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: January 8, 2019
    Assignee: Pfizer Inc.
    Inventors: Katherine Lin Lee, Christophe Philippe Allais, Christoph Martin Dehnhardt, Lori Krim Gavrin, Seungil Han, David Hepworth, Arthur Lee, Frank Eldridge Lovering, John Paul Mathias, Dafydd Rhys Owen, Nikolaos Papaioannou, Eddine Saiah, Joseph Walter Strohbach, John David Trzupek, Stephen Wayne Wright, Christoph Wolfgang Zapf
  • Patent number: 10144738
    Abstract: A compound having the structure: or a pharmaceutically acceptable salt thereof, wherein A, A? and A? are independently O, C?O, etc.; R0 and R are independently H, Br, Cl, F, or C1-C6 alkyl; R1 is H, C1-C6 alkyl, or hydroxy(C1-C6 alkyl); R2 is selected from the group consisting of H, C1-C6 alkyl, C1-C6 alkoxy, etc.; R6, R7 and R8 are each independently H, C1-C6 alkyl, C1-C4 alkoxy(C1-C6 alkyl), etc.; and, n is 0, 1, 2 or 3. Also provided are methods of treatment as Janus Kinase inhibitors and pharmaceutical compositions containing the compounds of the invention and combinations thereof with other therapeutic agents.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: December 4, 2018
    Assignee: Pfizer Inc.
    Inventors: Matthew Frank Brown, Alpay Dermenci, Andrew Fensome, Brian Stephen Gerstenberger, Matthew Merrill Hayward, Dafydd Rhys Owen, Stephen Wayne Wright, Li Huang Xing, Xiaojing Yang
  • Publication number: 20180244646
    Abstract: Compounds, tautomers and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula Ia, as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
    Type: Application
    Filed: August 16, 2016
    Publication date: August 30, 2018
    Applicant: PFIZER INC.
    Inventors: KATHERINE LIN LEE, CHRISTOPHE PHILIPPE ALLAIS, CHRISTOPH MARTIN DEHNHARDT, LORI KRIM GAVRIN, SEUNGIL HAN, DAVID HEPWORTH, ARTHUR LEE, FRANK ELDRIDGE LOVERING, JOHN PAUL MATHIAS, DAFYDD RHYS OWEN, NIKOLAOS PAPAIOANNOU, EDDINE SAIAH, JOSEPH WALTER STROHBACH, JOHN DAVID TRZUPEK, STEPHEN WAYNE WRIGHT, CHRISTOPH WOLFGANG ZAPF
  • Patent number: 10016420
    Abstract: The invention provides compounds of formula I, wherein: R1 represents a cyclic group selected from phenyl, heteroaryl1, heterocyclyl1 and C3-6 cycloalkyl; wherein each cyclic group is optionally substituted with from 1 to 3 substituents selected from halo, C1-6 alkyl optionally substituted with 1-3 halogen atoms, phenyl, C1-6 alkoxy optionally substituted with 1-3 halogen atoms, cyano, heteroaryl1a and heterocyclyl1a; and wherein each cyclic group is optionally fused to a benzene ring or a 5- or 6-membered heteroaromatic or heterocyclic ring each containing from 1 to 3 heteroatoms (selected from N, O and S); and when the group is substituted the substitution may occur anywhere on the optionally fused ring system as a whole; and wherein heterocyclyl1 and heterocyclyl1a may additionally be substituted with ?O; X represents a bond or C1-6 alkylene (which may be straight or branched); R2 represents H or C1-6 alkyl; R3 represents H or C1-6 alkyl; Y represents a bond or C1-6 alkylene (which may be straight
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: July 10, 2018
    Assignee: INHIBITAXIN LIMITED
    Inventors: Karl Richard Gibson, Dafydd Rhys Owen
  • Publication number: 20170240552
    Abstract: A compound compound having the structure: or a pharmaceutically acceptable salt thereof, or a pharmaceutically acceptable solvate of said compound or pharmaceutically acceptable salt, wherein A, A? and A? are independently O, C?O, C—R? or N—R?, where R? and R? may independently be H, amino, —NR7COR6, COR6, —CONR7R8, C1-C6 alkyl, or hydroxy(C1-C6 alkyl), and R? may be present or absent, and is present where the rules of valency permit, and where not more than one of A, A? and A? is O or C?O; R0 and R are independently H, Br, Cl, F, or C1-C6 alkyl; R1 is H, C1-C6 alkyl, or hydroxy(C1-C6 alkyl); R2 is selected from the group consisting of H, C1-C6 alkyl, C1-C6 alkoxy, hydroxy(C1-C6 alkyl), phenyl(C1-C6 alkyl), formyl, heteroaryl, heterocyclic, —COR6, —OCOR6, —COOR6, —NR7COR6, —CONR7R8, and —(CH2)n—W, where W is cyano, hydroxy, C3-C8 cycloalkyl, —SO2NR7R8, and —SO2—R9, where R9 is C1-C6 alkyl, C3-C8 cycloalkyl, heteroaryl, or heterocyclic; wherein each of said alkyl, cycloalkyl, heterocyclic, or heteroaryl ma
    Type: Application
    Filed: February 21, 2017
    Publication date: August 24, 2017
    Applicant: Pfizer Inc.
    Inventors: Matthew Frank BROWN, Alpay DERMENCI, Andrew FENSOME, Brian Stephen GERSTENBERGER, Matthew Merrill HAYWARD, Dafydd Rhys OWEN, Stephen Wayne WRIGHT, Li Huang XING, Xiaojing YANG
  • Publication number: 20160287584
    Abstract: The invention provides compounds of formula I, wherein: R1 represents a cyclic group selected from phenyl, heteroaryl1, heterocyclyl1 and C3-6 cycloalkyl; wherein each cyclic group is optionally substituted with from 1 to 3 substituents selected from halo, C1-6 alkyl optionally substituted with 1-3 halogen atoms, phenyl, C1-6 alkoxy optionally substituted with 1-3 halogen atoms, cyano, heteroaryl1a and heterocyclyl1a; and wherein each cyclic group is optionally fused to a benzene ring or a 5- or 6-membered heteroaromatic or heterocyclic ring each containing from 1 to 3 heteroatoms (selected from N, O and S); and when the group is substituted the substitution may occur anywhere on the optionally fused ring system as a whole; and wherein heterocyclyl1 and heterocyclyl1a may additionally be substituted with ?O; X represents a bond or C1-6 alkylene (which may be straight or branched); R2 represents H or C1-6 alkyl; R3 represents H or C1-6 alkyl; Y represents a bond or C1-6 alkylene (which may be straight
    Type: Application
    Filed: January 19, 2016
    Publication date: October 6, 2016
    Inventors: Karl Richard Gibson, Dafydd Rhys Owen
  • Patent number: 9273011
    Abstract: The invention provides compounds of formula I, (I) wherein: R represents a cyclic group selected from phenyl, heteroaryl, heterocyclyl and C 3-6 cycloalkyl; 10 wherein each cyclic group is optionally substituted with from 1 to 3 substituents selected from halo, C -6 alkyl optionally substituted with 1-3 halogen atoms, phenyl, C -6 alkoxy optionally substituted with 1-3 halogen atoms, cyano, heteroaryl 1a and heterocyclyl 1a; and wherein each cyclic group is optionally fused to a benzene ring or a 5- or 16-membered heteroaromatic or heterocyclic ring each containing from 1 to 3 heteroatoms (selected from N, O and S); and when the group is substituted the substitution may occur anywhere on the optionally fused ring system as a whole; and wherein heterocyclyl and heterocyclyl 1a may additionally be substituted with ?O; 20 X represents a bond or C -6 alkylene (which may be straight or branched); R 2 represents H or C -6 alkyl; R 3 represents H or C -6 alkyl; Y represents a bond or C -6 alkylene (which may be stra
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: March 1, 2016
    Assignee: Inhibitaxin Limited
    Inventors: Karl Richard Gibson, Dafydd Rhys Owen
  • Patent number: 8957025
    Abstract: The present invention relates to dipeptide enkephalin analogues of Formula (I) and their tautomers, ionic forms and pharmaceutically acceptable salts, and their use in medicine, in particular as opioid agonists.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: February 17, 2015
    Assignee: Pfizer Inc.
    Inventor: Dafydd Rhys Owen
  • Publication number: 20140275100
    Abstract: The invention provides compounds of formula I, (I) wherein: R represents a cyclic group selected from phenyl, heteroaryl, heterocyclyl and C 3-6 cycloalkyl; 10 wherein each cyclic group is optionally substituted with from 1 to 3 substituents selected from halo, C -6 alkyl optionally substituted with 1-3 halogen atoms, phenyl, C -6 alkoxy optionally substituted with 1-3 halogen atoms, cyano, heteroaryl 1a and heterocyclyl 1a; and wherein each cyclic group is optionally fused to a benzene ring or a 5- or 16-membered heteroaromatic or heterocyclic ring each containing from 1 to 3 heteroatoms (selected from N, O and S); and when the group is substituted the substitution may occur anywhere on the optionally fused ring system as a whole; and wherein heterocyclyl and heterocyclyl 1a may additionally be substituted with ?O; 20 X represents a bond or C -6 alkylene (which may be straight or branched); R 2 represents H or C -6 alkyl; R 3 represents H or C -6 alkyl; Y represents a bond or C -6 alkylene (which may be stra
    Type: Application
    Filed: October 26, 2012
    Publication date: September 18, 2014
    Inventors: Karl Richard Gibson, Dafydd Rhys Owen
  • Publication number: 20140121279
    Abstract: The present invention relates to dipeptide enkephalin analogues of Formula (I) and their tautomers, ionic forms and pharmaceutically acceptable salts, and their use in medicine, in particular as opioid agonists.
    Type: Application
    Filed: June 29, 2012
    Publication date: May 1, 2014
    Applicant: Pfizer Limited
    Inventor: Dafydd Rhys Owen
  • Patent number: 8598123
    Abstract: The present invention relates to compounds of Formula (I) and their pharmaceutically acceptable salts, wherein the substituents are as described herein, and their use in medicine, in particular as opioid agonists.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: December 3, 2013
    Assignee: Pfizer Inc.
    Inventors: Christopher Gordon Barber, Dafydd Rhys Owen, Lisa Rosemary Thompson
  • Publication number: 20120329724
    Abstract: The present invention relates to compounds of Formula (I) and their pharmaceutically acceptable salts, wherein the substituents are as described herein, and their use in medicine, in particular as opioid agonists.
    Type: Application
    Filed: September 7, 2012
    Publication date: December 27, 2012
    Inventors: Christopher Gordon Barber, Dafydd Rhys Owen, Lisa Rosemary Thompson
  • Publication number: 20110207654
    Abstract: The present invention relates to compounds of Formula (I) and their pharmaceutically acceptable salts, wherein the substituents are as described herein, and their use in medicine, in particular as opioid agonists.
    Type: Application
    Filed: February 24, 2011
    Publication date: August 25, 2011
    Inventors: Christopher Gordon Barber, Dafydd Rhys Owen, Lisa Rosemary Thompson
  • Patent number: 7569572
    Abstract: This invention relates to compounds of formula (I).
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: August 4, 2009
    Assignee: Pfizer Inc
    Inventors: Andrew Simon Bell, David Graham Brown, David Nathan Abraham Fox, Ian Roger Marsh, Andrew Ian Morrell, Dafydd Rhys Owen, Michael John Palmer, Carol Ann Winslow, Hwang Fun Lu, Thomas Edward Rogers
  • Publication number: 20080293697
    Abstract: This invention relates to compounds of formula (I).
    Type: Application
    Filed: March 30, 2005
    Publication date: November 27, 2008
    Inventors: Andrew Simon Bell, David Graham Brown, David Nathan Abraham Fox, Ian Roger Marsh, Andrew Ian Morrell, Dafydd Rhys Owen, Michael John Palmer, Carol Ann Winslow, Hwang Fun Lu, Thomas Edward Rogers
  • Publication number: 20040138274
    Abstract: The invention relates to NEP inhibitors for treating cardiovascular disorders wherein R1 is C1-C6alkyl, C1-C6alkoxyC1-C3alkyl or C1-C6alkoxyC1-C6alkoxyC1-C3alkyl; R2 is hydrogen or C1-C6alkyl; L is an aromatic heterocyclic ring, optionally substituted with C1-C6alkyl or halo; R3 is C1-C6alkyl optionally substituted by halo, alkoxy, haloalkoxy, alkylthio, haloalkylthio or nitrile group, or R3 is phenyl or aromatic heterocyclyl each of which may be independently substituted by one or more alkyl, halo, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio or nitrile group; R4 and R5 are either both hydrogen, or one of R4 and R5 is hydrogen and the other is a biolabile ester-forming group that in the body of a patient is replaced by hydrogen; p is 0, 1 or 2; and q is 1 or 2.
    Type: Application
    Filed: December 18, 2003
    Publication date: July 15, 2004
    Inventors: Kevin Neil Dack, Dafydd Rhys Owen, Christine Anne Louise Watson