Patents by Inventor Benjamin Mark Skead

Benjamin Mark Skead 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: 10927113
    Abstract: The present invention relates to a process for preparing a compound of formula [I], said process comprising the steps of: formula [II]+formula [III]?formula [I] (i) forming a reaction mixture comprising (a) a compound of formula [II], (b) a compound of formula [III] and (c) 1,2-propanediol or polyethylene glycol, or a mixture thereof, and optionally (d) a base; (ii) heating said reaction mixture to a temperature of at least about 150° C.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: February 23, 2021
    Assignee: Cyclacel Limited
    Inventors: Benjamin Mark Skead, Robert Westwood, Derek Londesbrough, Julian Scott Northen, Jonathan Charles Christian Atherton
  • Patent number: 9573951
    Abstract: The present invention relates to new crystalline forms of a purine derivative which exhibits excellent anti-tumor activity. The invention also relates to a pharmaceutical composition containing said crystalline forms as an active ingredient, and use thereof in the prevention or treatment of disease. The invention further relates to a process for preparing the crystalline forms.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: February 21, 2017
    Assignee: Cyclacel Limited
    Inventors: Benjamin Mark Skead, Christopher Peter Worrall, Jonathan Charles Christian Atherton, Julian Scott Northen, Philippe Fernandes
  • Publication number: 20150148354
    Abstract: The present invention relates to new crystalline forms of a purine derivative which exhibits excellent anti-tumour activity. The invention also relates to a pharmaceutical composition containing said crystalline forms as an active ingredient, and use thereof in the prevention or treatment of disease. The invention further relates to a process for preparing the crystalline forms.
    Type: Application
    Filed: October 27, 2014
    Publication date: May 28, 2015
    Inventors: Benjamin Mark SKEAD, Christopher Peter WORRALL, Jonathan Charles Christian ATHERTON, Julian Scott NORTHEN, Philippe FERNANDES
  • Patent number: 8889861
    Abstract: The present invention relates to new crystalline forms of a purine derivative which exhibits excellent anti-tumour activity. The invention also relates to a pharmaceutical composition containing said crystalline forms as an active ingredient, and use thereof in the prevention or treatment of disease. The invention further relates to a process for preparing the crystalline forms.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: November 18, 2014
    Assignee: Cyclacel Limited
    Inventors: Benjamin Mark Skead, Christopher Peter Worrall, Jonathan Charles Christian Atherton, Julian Scott Northen, Philippe Fernades
  • Publication number: 20130072504
    Abstract: The present invention relates to new crystalline forms of a purine derivative which exhibits excellent anti-tumour activity. The invention also relates to a pharmaceutical composition containing said crystalline forms as an active ingredient, and use thereof in the prevention or treatment of disease. The invention further relates to a process for preparing the crystalline forms.
    Type: Application
    Filed: January 24, 2011
    Publication date: March 21, 2013
    Applicant: CYCLACEL LIMITED
    Inventors: Benjamin Mark Skead, Christopher Peter Worrall, Jonathan Charles Christian Atherton, Julian Scott Northen, Philippe Fernades
  • Patent number: 7034028
    Abstract: A method of treating an inflammatory disease or an autoimmune disease in a subject, comprises the administration of mefloquine.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: April 25, 2006
    Assignee: Arakis Ltd.
    Inventors: Benjamin Mark Skead, Robin Mark Bannister, Alan Rothaul
  • Patent number: 6951943
    Abstract: A process for the preparation of a class of phenylalanine enamide derivatives is described: wherein: Ar1 is an optionally substituted aromatic or heteroaromatic group; L2 is a linker group selected from —N(R4)— [where R4 is a hydrogen atom or an optionally substituted straight or branched C1-6alkyl group], —CON(R4)—, or —S(O)2N(R4)—; R1 is a carboxylic acid (—CO2H) or a derivative or biostere thereof; R2 is a hydrogen atom or a C1-6alkyl group; Rx, Ry and Rz which may be the same or different is each an atom or group -L1(Alk1)n(R3)v; and the salts, solvates, hydrates and N-oxides thereof; which comprises reacting a compound of formula (2): wherein: Qa is a group —N(R4)H; and the salts, solvates, hydrates and N-oxides thereof; with a compound Ar1W wherein W is a group selected from X1(wherein X1 is a leaving atom or group), —COX2 (wherein X2 is a halogen atom or a —OH group) or —SO2X3 (in which X3 is a halogen atom).
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: October 4, 2005
    Assignee: Celltech R & D Limited
    Inventors: Benjamin Mark Skead, Nicholas David Tyrrell, Stephen Wilfred Jones, Michael Handforth Brookes
  • Publication number: 20040073033
    Abstract: A process for the preparation of a class of phenylalanine enamide derivatives is described: 1
    Type: Application
    Filed: July 16, 2003
    Publication date: April 15, 2004
    Inventors: Benjamin Mark Skead, Nicholas David Tyrrell, Stephen Wilfred Jones, Michael Handforth Brookes
  • Patent number: 5994548
    Abstract: Levobupivacaine or an analogue thereof is prepared by reaction with a tartaric acid resolving agent in a solvent, in the presence of water and/or less 0.5 equivalents of the resolving agent.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: November 30, 1999
    Assignee: Darwin Discovery Ltd.
    Inventors: Marianne Langston, Benjamin Mark Skead
  • Patent number: 5892093
    Abstract: A reproducible process for preparing a substantially single enantiomer (R or S) of 4-cyano-4-(3,4-dimethoxyphenyl)-5-methylhexanoic acid, or an analogue thereof, thereby providing single enantiomer acid for the first time, proceeds by means of a classical salt resolution employing a resolving agent selected from an enantiomer (R or S) of a 1-arylalkylamine and (-)-quinine, and provides novel salts that are readily convertible to verapamil.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: April 6, 1999
    Assignee: Darwin Discovery Limited
    Inventors: Robin Mark Bannister, Graham Robert Evans, Benjamin Mark Skead