Patents by Inventor Sean Willis

Sean Willis 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: 9980914
    Abstract: A pharmaceutical product comprising lyophilized polymer matrix including a biologically active compound, of particular utility for embolization, having improved rehydration properties is packaged in an airtight package under vacuum.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: May 29, 2018
    Assignee: BIOCOMPATIBLES UK LIMITED
    Inventors: Sean Willis, Rosemary Palmer
  • Publication number: 20150328160
    Abstract: A pharmaceutical product comprising lyophilised polymer matrix including a biologically active compound, of particular utility for embolisation, having improved rehydration properties is packaged in an airtight package under vacuum.
    Type: Application
    Filed: July 21, 2015
    Publication date: November 19, 2015
    Applicant: BIOCOMPATIBLES UK LIMITED
    Inventors: Sean WILLIS, Rosemary PALMER
  • Publication number: 20150320684
    Abstract: A pharmaceutical product comprising lyophilised polymer matrix including a biologically active compound, of particular utility for embolisation, having improved rehydration properties is packaged in an airtight package under vacuum.
    Type: Application
    Filed: July 21, 2015
    Publication date: November 12, 2015
    Applicant: BIOCOMPATIBLES UK LIMITED
    Inventors: Sean WILLIS, Rosemary PALMER
  • Patent number: 9107833
    Abstract: A pharmaceutical product comprising lyophilized polymer matrix including a biologically active compound, of particular utility for embolization, having improved rehydration properties is packaged in an airtight package under vacuum.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: August 18, 2015
    Assignee: BIOCOMPATIBLES UK LIMITED
    Inventors: Sean Willis, Rosemary Palmer
  • Patent number: 8252878
    Abstract: A novel class of polymers obtainable by copolymerising a monomer mixture comprising (i) hydrophilic monomer of general formula (I) Y—B—X; (ii) styrene or a substituted styrene, a monomer or mixture of monomers which when polymerized form a polymer with a Tg lower than the Tg of a homopolymer of monomer (I) and lower than the Tg of a homopolymer of monomer (ii); and a monomer having a crosslinkable group is described. The invention also relates to a method for producing such polymers, implants coated with the polymers and methods for forming the same.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: August 28, 2012
    Assignee: Biocompatibles UK Limited
    Inventors: Andrew Lennard Lewis, Sean Willis, Stephen Alister Jones, Vincent James O'Byrne, David Michael Grey, Michael John Driver, Samantha Ryan, Richard Paul Redman
  • Publication number: 20090317443
    Abstract: A method forming a coated implant is described. The implant comprises a surface which is first coated with a primer and subsequently with a biocompatible polymer capable of forming a covalent bond to the primer. The polymer coating is then crosslinked. The invention also relates to implants, in particular, stents, coated with such a coating.
    Type: Application
    Filed: July 16, 2007
    Publication date: December 24, 2009
    Applicant: BIOCOMPATIBLES UK LIMITED Chapman House
    Inventors: Sean Willis, Vincent James O'Byrne, Samantha Ryan
  • Publication number: 20090304770
    Abstract: A novel class of polymers obtainable by copolymerising a monomer mixture comprising (i) hydrophilic monomer of general formula (I) Y—B—X; (ii) styrene or a substituted styrene, a monomer or mixture of monomers which when polymerised form a polymer with a Tg lower than the Tg of a homopolymer of monomer (I) and lower than the Tg of a homopolymer of monomer (ii); and a monomer having a crosslinkable group is described. The invention also relates to a method for producing such polymers, implants coated with the polymers and methods for forming the same.
    Type: Application
    Filed: July 16, 2007
    Publication date: December 10, 2009
    Applicant: BIOCOMPATIBLES UK LIMITED
    Inventors: Andrew Lennard Lewis, Sean Willis, Stephen Alister Jones, Vincent James O'Byrne, David Micheal Grey, Michael John Driver, Samantha Ryan, Richard Paul Redman
  • Publication number: 20090274762
    Abstract: A pharmaceutical product comprising lyophilised polymer matrix including a biologically active compound, of particular utility for embolisation, having improved rehydration properties is packaged in an airtight package under vacuum.
    Type: Application
    Filed: June 22, 2007
    Publication date: November 5, 2009
    Applicant: BIOCOMPATIBLES UK LIMITED
    Inventors: Sean Willis, Rosemary Palmer
  • Publication number: 20050159556
    Abstract: Polymers may be made from zwitterionic monomers having controlled architectures and molecular weights, using living polymerisations such as group or atom transfer radical polymerisation. For instance polymers may be formed by atom transfer radical polymerisation using a copper chloride catalyst, a ligand which is water soluble, and a water soluble tertiary alkyl halide initiator to form homopolymers having controlled polydispersities of less than 1.5 and block copolymers with other hydrophilic or hydrophobic monomers. One suitable zwitterionic monomer is 2-methacryloyloxy-2?-trimethylammoniumethyl phosphate inner salt. The block copolymers may spontaneously form micelles, believed to have zwitterionic, for instance phosphorylcholine, groups at the external surface, which may be useful as drug delivery systems with improved biocompatibility.
    Type: Application
    Filed: January 3, 2005
    Publication date: July 21, 2005
    Inventors: Andrew Lewis, Sean Willis, Steven Armes, Emma Lobb, Yinghua Ma