Patents by Inventor Peter William Stratford

Peter William Stratford 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: 20180133236
    Abstract: A composition for chemoembolotherapy of solid tumours comprises particles of a water-insoluble water-swellable synthetic anionic polymer and, absorbed therein an anthracycline. Suitably the polymer is a poly(vinyl alcohol) based polymer and the drug is doxorubicin.
    Type: Application
    Filed: January 12, 2018
    Publication date: May 17, 2018
    Applicant: BIOCOMPATIBLES UK LIMITED
    Inventors: Andrew Lennard LEWIS, Peter William STRATFORD, Simon LEPPARD, Pedro GARCIA, Brenda HALL, Maria Victoria Fajardo GONZALEZ
  • Patent number: 9901590
    Abstract: A composition for chemoembolotherapy of solid tumors comprises particles of a water-insoluble water-swellable synthetic anionic polymer and, absorbed therein an anthracycline. Suitably the polymer is a poly(vinyl alcohol) based polymer and the drug is doxorubicin.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: February 27, 2018
    Assignee: BIOCOMPATIBLES UK LIMITED
    Inventors: Andrew Lennard Lewis, Peter William Stratford, Simon Leppard, Pedro Garcia, Brenda Hall, Maria Victoria Fajardo Gonzalez
  • Publication number: 20160106673
    Abstract: The present invention provides a composition comprising vesicles and encapsulated within the vesicles, nucleic acid comprising less than 1000 nucleotides, wherein the vesicles comprise an amphiphilic block copolymer having a hydrophilic and a hydrophobic block. Methods of forming vesicles and methods of delivering nucleic acid, in particular, iRNA into cells, are also provided.
    Type: Application
    Filed: December 28, 2015
    Publication date: April 21, 2016
    Applicant: BIOCOMPATIBLES UK LIMITED
    Inventors: Andrew Lennard LEWIS, Giuseppe BATTAGLIA, Irene CANTON, Peter William STRATFORD
  • Publication number: 20160089389
    Abstract: A composition for chemoembolotherapy of solid tumours comprises particles of a water-insoluble water-swellable synthetic anionic polymer and, absorbed therein an anthracycline. Suitably the polymer is a poly(vinyl alcohol) based polymer and the drug is doxorubicin.
    Type: Application
    Filed: December 8, 2015
    Publication date: March 31, 2016
    Applicant: BIOCOMPATIBLES UK LIMITED
    Inventors: Andrew Lennard LEWIS, Peter William STRATFORD, Simon LEPPARD, Pedro GARCIA, Brenda HALL, Maria Victoria Fajardo GONZALEZ
  • Patent number: 9254258
    Abstract: The present invention provides a composition comprising vesicles and encapsulated within the vesicles, nucleic acid comprising less than 1000 nucleotides, wherein the vesicles comprise an amphiphilic block copolymer having a hydrophilic and a hydrophobic block. Methods of forming vesicles and methods of delivering nucleic acid, in particular, iRNA into cells, are also provided.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: February 9, 2016
    Assignee: BIOCOMPATIBLES UK LIMITED
    Inventors: Andrew Lennard Lewis, Giuseppe Battaglia, Irene Canton, Peter William Stratford
  • Patent number: 9241895
    Abstract: A composition for chemoembolotherapy of solid tumors comprises particles of a water-insoluble water-swellable synthetic anionic polymer and, absorbed therein an anthracycline. Suitably the polymer is a poly(vinyl alcohol) based polymer and the drug is doxorubicin.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: January 26, 2016
    Assignee: BIOCOMPATIBLES UK LIMITED
    Inventors: Andrew Lennard Lewis, Peter William Stratford, Simon Leppard, Pedro Garcia, Brenda Hall, Maria Victoria Fajardo Gonzalez
  • Publication number: 20140162969
    Abstract: There is provided a new use of microspheres comprising a water-insoluble, water-swellable polymer which is anionically charged at pH7, and electrostatically associated with the polymer, in releasable form, a cationically charged chemotherapeutic agent, in the manufacture of a composition for use in the treatment of a brain tumour, wherein in the treatment the composition is introduced into the brain and the chemotherapeutic agent is released from the microspheres, wherein the microspheres, when equilibrated in water at 37° C., comprise at least 40 wt % water based on weight of polymer plus water. Compositions comprising the microspheres and methods for the treatment of brain tumours are also provided.
    Type: Application
    Filed: February 14, 2014
    Publication date: June 12, 2014
    Applicant: BIOCOMPATIBLES UK LIMITED
    Inventors: Andrew Lennard LEWIS, Yiqing TANG, Peter William STRATFORD
  • Patent number: 8691791
    Abstract: There is provided a new use of microspheres comprising a water-insoluble, water-swellable polymer which is anionically charged at pH7, and electrostatically associated with the polymer, in releasable form, a cationically charged chemotherapeutic agent, in the manufacture of a composition for use in the treatment of a brain tumor, wherein in the treatment the composition is introduced into the brain and the chemotherapeutic agent is released from the microspheres, wherein the microspheres, when equilibrated in water at 37° C., comprise at least 40 wt % water based on weight of polymer plus water. Compositions comprising the microspheres and methods for the treatment of brain tumors are also provided.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: April 8, 2014
    Assignee: Biocompatibles UK Limited
    Inventors: Andrew Lennard Lewis, Yiqing Tang, Peter William Stratford
  • Publication number: 20130243695
    Abstract: A composition for chemoembolotherapy of solid tumours comprises particles of a water-insoluble water-swellable synthetic anionic polymer and, absorbed therein an anthracycline. Suitably the polymer is a poly(vinyl alcohol) based polymer and the drug is doxorubicin.
    Type: Application
    Filed: April 30, 2013
    Publication date: September 19, 2013
    Applicant: BIOCOMPATIBLES UK LIMITED
    Inventors: Andrew Lennard LEWIS, Peter William STRATFORD, Simon LEPPARD, Pedro GARCIA, Brenda HALL, Maria Victoria Fajardo GONZALEZ
  • Patent number: 8455003
    Abstract: A composition for chemoembolotherapy of solid tumors comprises particles of a water-insoluble water-swellable synthetic anionic polymer and, absorbed therein an anthracycline. Suitably the polymer is a poly(vinyl alcohol) based polymer and the drug is doxorubicin.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: June 4, 2013
    Assignee: Biocompatibles UK Limited
    Inventors: Andrew Lennard Lewis, Peter William Stratford, Simon Leppard, Pedro Garcia, Brenda Hall, Maria Victoria Fajardo Gonzalez
  • Publication number: 20120276151
    Abstract: An embolic composition comprises microspheres formed of water-insoluble water-swellable anionic polymer having swollen diameter more than 100 ?m and a cationic camptothecin compound, preferably irinotecan. The microspheres are preferably formed of crosslinked polyvinylalcohol, preferably of ethylenically unsaturated polyvinylalcohol macromer, crosslinked with anionic ethylenically unsaturated anionic comonomer. The compositions are used to treat hypervascular tumours for instance colorectal metastases of the liver.
    Type: Application
    Filed: October 27, 2011
    Publication date: November 1, 2012
    Applicant: BIOCOMPATIBLES UK LIMITED
    Inventors: Andrew Lennard Lewis, Peter William Stratford, Maria Victoria Gonzalez. Fajardo, Yiqing Tang
  • Publication number: 20120269722
    Abstract: A composition for chemoembolotherapy of solid tumours comprises particles of a water-insoluble water-swellable synthetic anionic polymer and, absorbed therein an anthracycline. Suitably the polymer is a poly(vinyl alcohol) based polymer and the drug is doxorubicin.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 25, 2012
    Applicant: BIOCOMPATIBLES UK LIMITED
    Inventors: Andrew Lennard LEWIS, Peter William STRATFORD, Simon LEPPARD, Pedro GARCIA, Brenda HALL, Maria Victoria Fajardo GONZALEZ
  • Publication number: 20120201867
    Abstract: An embolic composition comprises microspheres formed of water-insoluble water-swellable anionic polymer having swollen diameter more than 100 ?m, and a cationic camptothecin compound, preferably irinotecan. The microspheres are preferably formed of crosslinked polyvinylalcohol, preferably of ethylenically unsaturated polyvinylalcohol macromer, crosslinked with anionic ethylenically unsaturated anionic comonomer. The compositions are used to treat hypervascular tumours for instance colorectal metastases of the liver.
    Type: Application
    Filed: April 20, 2012
    Publication date: August 9, 2012
    Applicant: BIOCOMPATIBLES UK LIMITED
    Inventors: Andrew Lennard LEWIS, Peter William STRATFORD, Maria Victoria GONZALEZ.FAJARDO, Yiqing TANG
  • Patent number: 8221793
    Abstract: A composition for chemoembolotherapy of solid tumors comprises particles of a water-insoluble water-swellable synthetic anionic polymer and, absorbed therein an anthracycline. Suitably the polymer is a poly(vinyl alcohol) based polymer and the drug is doxorubicin.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: July 17, 2012
    Assignee: Biocompatibles UK Limited
    Inventors: Andrew Lennard Lewis, Peter William Stratford, Simon Leppard, Pedro Garcia, Brenda Hall, Maria Victoria Fajardo Gonzalez
  • Publication number: 20110293672
    Abstract: There is provided a composition comprising microspheres which comprise a water-insoluble, water-swellable polymer and associated with the polymer, in releasable form, a chemotherapeutic agent, for use in the treatment of a pancreatic tumour or cyst, wherein the microspheres, when equilibrated in water at 37° C., comprise at least 40 wt % water based on weight of polymer plus water, wherein the polymer is anionically charged at pH7 and the chemotherapeutic agent is cationically charged and electrostatically associated with the polymer. Also provided are methods of treating pancreatic tumours or cysts using this composition.
    Type: Application
    Filed: November 25, 2009
    Publication date: December 1, 2011
    Applicant: BIOCOMPATIBLES UK LIMITED
    Inventors: Andrew Lennard Lewis, Peter William Stratford, Richard Edward John Forster
  • Patent number: 8052746
    Abstract: The present invention relates to a balloon expandable stent mounted on a balloon catheter, the entire assembly being overcoated with a coherent polymer coating, which is preferably substantially continuous over the circumference and, more preferably, axial length of the stem on the balloon. The polymer coating improves retention of the stent on the balloon during delivery and does not adversely effect the deployment characteristics, nor the balloon failure characteristics. The product is made by mounting the stent on the balloon and coating the assembly with a liquid coating composition containing a suitable polymer followed by curing of the coating. The polymer is biocompatible and preferably crosslinkable in the coating composition, and crosslinked in the final product. A suitable polymer is formed from monomers including a zwitterionic, preferably a phosphoryl choline, group, and monomers including a trialkoxysilyl group.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: November 8, 2011
    Assignee: Biocompatibles Limited
    Inventors: Peter William Stratford, Alistair Stewart Taylor, Vincent James O'Byrne, John Tom Clarke, Denis Dominic Healy
  • Publication number: 20110236431
    Abstract: The present application refers to the use of cells, e.g. mesenchymal stem cells or mesenchymal stromal cells, or any further suitable cell, encoding and secreting GLP-1, a fragment or variant thereof or a fusion peptide comprising GLP-1 or a fragment or variant thereof, for the treatment of acute myocardial infarction (AMI or Ml), wherein the cells, encoding and secreting GLP-1, a fragment or variant thereof or a fusion peptide comprising GLP-1 or a fragment or variant thereof, are encapsulated in a (spherical) microcapsule to prevent a response of the immune system of the patient to be treated. The present application also refers to the use of these (spherical) microcapsule(s) or of a pharmaceutical composition containing these cells or (spherical) microcapsule(s) for the treatment of acute myocardial infarction (AMI or Ml).
    Type: Application
    Filed: September 11, 2009
    Publication date: September 29, 2011
    Applicant: BIOCOMPATIBLES UK LTD.
    Inventors: Christine Wallrapp, Andrew Lennard Lewis, Peter William Stratford, Eric Thoenes
  • Publication number: 20110151013
    Abstract: The present invention provides a composition comprising vesicles and encapsulated within the vesicles, nucleic acid comprising less than 1000 nucleotides, wherein the vesicles comprise an amphiphilic block copolymer having a hydrophilic and a hydrophobic block. Methods of forming vesicles and methods of delivering nucleic acid, in particular, iRNA into cells, are also provided.
    Type: Application
    Filed: May 14, 2009
    Publication date: June 23, 2011
    Applicant: BIOCOMPATIBLES UK LIMITED
    Inventors: Andrew Lennard Lewis, Giuseppe Battaglia, Irene Canton, Peter William Stratford
  • Patent number: 7794775
    Abstract: The present invention relate to a balloon expandable stent mounted on a balloon catheter, the entire assembly being overcoated with a coherent polymer coating, which is preferably substantially continuous over the circumference and, more preferably, axial length of the stent on the balloon. The polymer coating improves retention of the stent on the balloon during delivery and does not adversely effect the deployment characteristics, nor the balloon failure characteristics. The product is made by mounting the stent on the balloon and coating the assembly with a liquid coating composition containing a suitable polymer followed by curing of the coating. The polymer is biocompatible and preferably crosslinkable in the coating composition, and crosslinked in the final product. A suitable polymer is formed from monomers including a zwitterionic, preferably a phosphoryl choline, group, and monomers including a trialkoxysilyl group.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: September 14, 2010
    Assignee: Biocompatibles Limited
    Inventors: Peter William Stratford, Alistair Stewart Taylor, Vincent James O'Byrne, John Tom Clarke, Denis Dominic Healy
  • Patent number: 7754272
    Abstract: An implant having a coating comprising a polymer matrix is swollen in a pharmaceutical solution whereby pharmaceutically active compound is imbibed into the polymer matrix. When the product is implanted, release of the pharmaceutically active compound from the coating takes place. The polymer is preferably formed from ethylenically unsaturated monomers including a zwitterionic monomer, most preferably 2-methacryloyloxyethyl-2?-trimethylammoniumethyl-phosphate inner salt. The monomers from which the polymer is formed may further include surface binding monomers, such as hydrophobic group containing monomers, and crosslinkable monomers, the content of which may be used to control the swellability. Preferably the implant is a stent and the coating of polymer on the exterior wall surface is thicker than the coating of polymer on the interior surface. Release of the drug may be controlled by selection of comonomers. The implant is suitably a stent for use in the cardiovascular system.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: July 13, 2010
    Assignee: Biocompatibles IK Limited
    Inventors: Lee Rowan, Peter William Stratford, Alistair Stewart Taylor, Terrence Albert Vick