Patents by Inventor Derek Edward John

Derek Edward John 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: 9447033
    Abstract: The present invention provides a compound of formula (I) or its salts or pharmaceutically acceptable derivatives thereof wherein X1, R1, R2, R3, R4, and R5 are defined as set forth in the specification. The compounds are useful as potassium ion channel inhibitors.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: September 20, 2016
    Assignee: Japan Tobacco Inc.
    Inventors: Mushtaq Mulla, Derek Edward John, Richard John Hamlyn, Sasha Louise Garrett, Basil Hartzoulakis, David Madge, John Ford
  • Publication number: 20160152634
    Abstract: The present invention provides compounds of formula (I): (Formula (I)); wherein A, R1, R2, R3I, V, X, and Z are defined herein, which are potassium channel inhibitors. The invention further provides pharmaceutical compositions comprising the compounds of formula (I) and their use in therapy, in particular in treatment of diseases or conditions that are mediated by Kir3.1 and/or Kir3.4 or any heteromultimers thereof, or that require inhibition of Kir3.1 and/or Kir3.4 or any heteromultimers thereof.
    Type: Application
    Filed: February 5, 2016
    Publication date: June 2, 2016
    Inventors: David Madge, Fiona Chan, Derek Edward John, Simon D. Edwards, Richard Blunt, Basil Hartzoulakis, Lindsay Brown
  • Patent number: 9290511
    Abstract: The present invention provides compounds of formula (I): (Formula (I); wherein A, R1, R2, R3I, V, X, and Z are defined herein, which are potassium channel inhibitors. The invention further provides pharmaceutical compositions comprising the compounds of formula (I) and their use in therapy, in particular in treatment of diseases or conditions that are mediated by Kir3.1 and/or Kir3.4 or any heteromultimers thereof, or that require inhibition of Kir3.1 and/or Kir3.4 or any heteromultimers thereof.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: March 22, 2016
    Assignee: Xention Limited
    Inventors: David Madge, Fiona Chan, Derek Edward John, Simon D. Edwards, Richard Blunt, Basil Hartzoulakis, Lindsay Brown
  • Patent number: 9249155
    Abstract: The present invention relates to thienopyrimidine compounds which are potassium channel inhibitors. Pharmaceutical compositions comprising the compounds and their use in the treatment of arrhythmia are also described.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: February 2, 2016
    Assignee: XENTION LIMITED
    Inventors: John Ford, Derek Edward John
  • Publication number: 20150259282
    Abstract: The present invention provides a compound of formula (I) or its salts or pharmaceutically acceptable derivatives thereof wherein X1, R1, R2, R3, R4, and R5 are defined as set forth in the specification. The compounds are useful as potassium ion channel inhibitors.
    Type: Application
    Filed: May 28, 2015
    Publication date: September 17, 2015
    Applicant: Xention Limited
    Inventors: Mushtaq MULLA, Derek Edward JOHN, Richard John HAMLYN, Sasha Louise GARRETT, Basil HARTZOULAKIS, David MADGE, John FORD
  • Patent number: 9073834
    Abstract: The present invention provides a compound of formula (I) or its salts or pharmaceutically acceptable derivatives thereof wherein X1, R1, R2, R3, R4, and R5 are defined as set forth in the specification. The compounds are useful as potassium ion channel inhibitors.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: July 7, 2015
    Assignee: Xention Limited
    Inventors: Mushtaq Mulla, Derek Edward John, Richard John Hamlyn, Sasha Louise Garrett, Basil Hartzoulakis, David Madge, John Ford
  • Publication number: 20140371203
    Abstract: The present invention provides compounds of formula (I): (Formula (I); wherein A, R1, R2, R3I, V, X, and Z are defined herein, which are potassium channel inhibitors. The invention further provides pharmaceutical compositions comprising the compounds of formula (I) and their use in therapy, in particular in treatment of diseases or conditions that are mediated by Kir3.1 and/or Kir3.4 or any heteromultimers thereof, or that require inhibition of Kir3.1 and/or Kir3.4 or any heteromultimers thereof.
    Type: Application
    Filed: November 15, 2012
    Publication date: December 18, 2014
    Inventors: David Madge, Fiona Chan, Derek Edward John, Simon D. Edwards, Richard Blunt, Basil Hartzoulakis, Lindsay Brown
  • Publication number: 20140357662
    Abstract: The present invention provides compounds of formula (I): wherein A, R1, R2, R3 IX, and Z are defined herein, which are potassium channel inhibitors. The invention further provides pharmaceutical compositions comprising the compounds of formula (I) and their use in therapy, in particular in treatment of diseases or conditions that are mediated by Kir3.1 and/or Kir3.4 or any heteromultimers thereof, or that require inhibition of Kir3.1 and/or Kir3.4 or any heteromultimers thereof.
    Type: Application
    Filed: November 15, 2012
    Publication date: December 4, 2014
    Inventors: Derek Edward John, Basil Hartzoulakis, Simon D. Edwards
  • Publication number: 20140221337
    Abstract: The present invention provides a compound of formula (I) or its salts or pharmaceutically acceptable derivatives thereof wherein X1, R1, R2, R3, R4, and R5 are defined as set forth in the specification. The compounds are useful as potassium ion channel inhibitors.
    Type: Application
    Filed: February 6, 2014
    Publication date: August 7, 2014
    Applicant: Xention Limited
    Inventors: Mushtaq Mulla, Derek Edward John, Richard John Hamlyn, Sasha Louise Garrett, Basil Hartzoulakis, David Madge, John Ford
  • Publication number: 20140206703
    Abstract: The present invention relates to thienopyrimidine compounds which are potassium channel inhibitors. Pharmaceutical compositions comprising the compounds and their use in the treatment of arrhythmia are also described.
    Type: Application
    Filed: March 29, 2012
    Publication date: July 24, 2014
    Applicant: XENTION LIMITED
    Inventors: John Ford, Derek Edward John
  • Patent number: 8673901
    Abstract: The present invention provides a compound of formula (I) or its salts or pharmaceutically acceptable derivatives thereof wherein X1, R1, R2, R3, R4, and R5 are defined as set forth in the specification. The compounds are useful as potassium ion channel inhibitors.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: March 18, 2014
    Assignee: Xention Limited
    Inventors: Mushtaq Mulla, Derek Edward John, Richard John Hamlyn, Sasha Louise Garrett, Basil Hartzoulakis, David Madge, John Ford
  • Patent number: 8426442
    Abstract: A compound of formula (I): Or its salts or pharmaceutically acceptable derivatives thereof wherein: A represents a chemical moiety with the general formula (II): X and Y are independently selected from a group consisting of CH2, CH(R5) or C(R5)(R6); R1 is selected from the group consisting of optionally substituted arylalkyl, and optionally substituted heteroarylalkyl; R2 is selected from the group consisting of optionally substituted aryl or optionally substituted heteroaryl or NR7R8; R3 R4 R5 R6 R7 and R8 are as defined herein, n=0, 1, 2 or 3; o=0, 1 or 2, with the proviso that when o=0, then n is 1, 2 or 3 and when o=1, then n is 1 or 2 is provided. Pharmaceutical compositions comprising the compounds are also provided. These compounds are useful in the treatment of various disorders including arrhythmia.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: April 23, 2013
    Assignee: Xention Ltd
    Inventors: Richard John Hamlyn, Mushtaq Mulla, David Madge, Basil Hartzoulakis, Simon Mark Jones, Derek Edward John, Oliver Gareth Dugdale
  • Patent number: 8399481
    Abstract: A compound of formula (I) Or its salts or pharmaceutically acceptable derivatives thereof wherein; A represents a chemical moiety with the general formula (II): X is selected from a group consisting of CH2, C(?O), CH(R5), C(R5)(R6) or C(R5)(R6)CH2; R1 is selected from the group consisting of optionally substituted arylalkyl, and optionally substituted heteroarylalkyl; R2 is selected from the group consisting of optionally substituted aryl or optionally substituted heteroaryl or NR7R8; R3 R4 R5 R6 R7 and R8 are as defined herein; and n=1 or 2 is provided. Pharmaceutical compositions comprising the compounds are also provided. The compounds are useful in treating various conditions including arrhythmia.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: March 19, 2013
    Assignee: Xention Ltd
    Inventors: Richard John Hamlyn, David Madge, Mushtaq Mulla, Basil Hartzoulakis, Simon Mark Jones, Derek Edward John, Oliver Gareth Dugdale
  • Patent number: 8372840
    Abstract: The present invention provides a compound of formula (I) or its salts or pharmaceutically acceptable derivatives thereof, wherein R1, R2, R3, R4, R5, X1, and j are defined herein. The compounds are useful as potassium ion channel inhibitors.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: February 12, 2013
    Assignee: Xention Limited
    Inventors: Richard John Hamlyn, Mushtaq Mulla, Derek Edward John, Simon Mark Jones, Basil Hartzoulakis, David Madge, John Ford
  • Patent number: 8258138
    Abstract: The present invention provides a compound of formula (I) or its salts or pharmaceutically acceptable derivatives wherein R1, R2, R3, X1, and A are defined herein. The compounds are useful as potassium ion channel inhibitors.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: September 4, 2012
    Assignee: Xention Limited
    Inventors: Derek Edward John, Mushtaq Mulla, Richard John Hamlyn, Simon Mark Jones, Derek Roland Pollard, Basil Hartzoulakis, Helen Payne, David Madge, John Ford
  • Publication number: 20100087428
    Abstract: The present invention provides a compound of formula (I) or its salts or pharmaceutically acceptable derivatives thereof wherein; X1 is selected from a group consisting of CH2, C(?O), C(?NH), NC(?O), R1 is selected from the group consisting of optionally substituted arylalkyl, and optionally substituted heteroarylalkyl R2 is selected from the group consisting of optionally substituted alkyl, optionally substituted aryl or heteroaryl or NR24R25 R3 is selected from the group consisting of hydrogen, halogen, hydroxyl, alkoxy, aryloxy, optionally substituted alkyl, optionally substituted amino, optionally substituted amino sulfonyl or nitrile; R4 is selected from the group consisting of optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted acyl, optionally substituted sulfonyl, optionally substituted sulfamoyl, optionally substituted aryl, optionally substituted arylalkyl, and optionally substituted heteroaryl R5 may be hydrogen, an o
    Type: Application
    Filed: August 31, 2009
    Publication date: April 8, 2010
    Applicant: Xention Limited
    Inventors: Mushtaq Mulla, Derek Edward John, Richard John Hamlyn, Sasha Louise Garrett, Basil Hartzoulakis, David Madge, John Ford
  • Publication number: 20100087437
    Abstract: The present invention provides a compound of formula (I) or its salts or pharmaceutically acceptable derivatives wherein R1, R2, R3, X1, and A are defined herein. The compounds are useful as potassium ion channel inhibitors.
    Type: Application
    Filed: August 31, 2009
    Publication date: April 8, 2010
    Applicant: Xention Limited
    Inventors: Derek Edward JOHN, Mushtag MULLA, Richard John HAMLYN, Simon Mark JONES, Derek Roland POLLARD, Basil HARTZOULAKIS, Helen PAYNE, David MADGE, John FORD
  • Publication number: 20100087438
    Abstract: The present invention provides a compound of formula (I) or its salts or pharmaceutically acceptable derivatives thereof, wherein R1, R2, R3, R4, R5, X1, and j are defined herein. The compounds are useful as potassium ion channel inhibitors.
    Type: Application
    Filed: August 31, 2009
    Publication date: April 8, 2010
    Applicant: Xention Limited
    Inventors: Richard John HAMLYN, Mushtaq Mulla, Derek Edward John, Simon Mark Jones, Basil Hartzoulakis, David Madge, John Ford