Patents by Inventor Richard Alexander Evans

Richard Alexander Evans 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: 9250356
    Abstract: A photochromic polymer comprising at least two photochromic moieties linked by a straight or branched chain polymer selected from the group consisting of a homo-polyester, a co-polyester, and a co-polyester-polyether.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: February 2, 2016
    Assignee: Vivimed Labs Europe Ltd
    Inventors: Richard Alexander Evans, Nino Malic, Ian John Dagley
  • Patent number: 9217812
    Abstract: A photochromic polymer comprising at least two photochromic moieties linked by a straight or branched chain polymer selected from the group consisting of poly(C2 to C4 alkylene oxide), poly[C1 to C10 alkoxy substituted (C2 to C4 alkylene oxide)] and poly[C1 to C-15 acyloxy substituted (C2 to C4 alkylene oxide)].
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: December 22, 2015
    Assignee: Vivimed Labs Europe LTD
    Inventors: Richard Alexander Evans, Nino Malic
  • Patent number: 8993697
    Abstract: A polymer comprising a conducting or semiconducting segment coupled to a polymer segment having an insulating polymer backbone, the polymer further comprising a RAFT functional group coupled to the polymer segment, wherein there is no RAFT functional group in between the conducting or semiconducting segment and the polymer segment.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: March 31, 2015
    Assignee: Commonwealth Scientific and Industrial Research Institute Organisation
    Inventors: Ming Chen, Graeme Moad, Ezio Rizzardo, Richard Alexander Evans, Matthias Haeussler
  • Patent number: 8865029
    Abstract: A photochromic polymer comprising at least one siloxane oligomer and at least two photochromic groups covalently linked to one or both terminuses of the siloxane oligomer and compositions containing photochromic siloxane polymers with narrow polydispersity. The photochromic polymer enhances switching speed in rigid host polymers.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: October 21, 2014
    Assignee: Vivimed Labs Europe Ltd.
    Inventors: Richard Alexander Evans, Nino Malic, Mark Robert York, Abdelselam Saeed Ali, Jonathan Andrew Campbell
  • Patent number: 8795782
    Abstract: The present invention relates to a controllable polymeric surface coating including a macromolecule, which is covalently bound to the surface of a substrate, the macromolecule including a plurality of polymerization initiators and a plurality of surface binding groups. Pendant polymers may be grafted from at least some of the polymerization initiators.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: August 5, 2014
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Laurence Meagher, Helmut Thissen, Paul Pasic, Richard Alexander Evans, Graham Johnson
  • Publication number: 20140042377
    Abstract: A photochromic polymer comprising at least two photochromic moieties linked by a straight or branched chain polymer selected from the group consisting of poly(C2 to C4 alkylene oxide), poly[C1 to C10 alkoxy substituted (C2 to C4 alkylene oxide)] and poly[C1 to C-15 acyloxy substituted (C2 to C4 alkylene oxide)].
    Type: Application
    Filed: May 2, 2012
    Publication date: February 13, 2014
    Applicant: VIVIMED LABS EUROPE LTD
    Inventors: Richard Alexander Evans, Nino Malic
  • Publication number: 20140027684
    Abstract: A photochromic polymer comprising at least two photochromic moieties linked by a straight or branched chain polymer selected from the group consisting of a homo-polyester, a co-polyester, and a co-polyester-polyether.
    Type: Application
    Filed: May 21, 2012
    Publication date: January 30, 2014
    Applicant: VIVIMED LABS EUROPE LTD
    Inventors: Richard Alexander Evans, Nino Malic, Ian John Dagley
  • Publication number: 20130289217
    Abstract: A polymer comprising a conducting or semiconducting segment coupled to a polymer segment having an insulating polymer backbone, the polymer further comprising a RAFT functional group coupled to the polymer segment, wherein there is no RAFT functional group in between the conducting or semiconducting segment and the polymer segment.
    Type: Application
    Filed: June 28, 2013
    Publication date: October 31, 2013
    Inventors: Ming CHEN, Graeme MOAD, Ezio RIZZARDO, Richard Alexander EVANS, Matthias HAEUSSLER
  • Patent number: 8501889
    Abstract: A polymer comprising a conducting or semiconducting segment coupled to a polymer segment having an insulating polymer backbone, the polymer further comprising a RAFT functional group coupled to the polymer segment, wherein there is no RAFT functional group in between the conducting or semiconducting segment and the polymer segment.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: August 6, 2013
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Ming Chen, Graeme Moad, Ezio Rizzardo, Richard Alexander Evans, Matthias Haeussler
  • Publication number: 20120178165
    Abstract: The present invention relates to a controllable polymeric surface coating including a macromolecule, which is covalently bound to the surface of a substrate, the macromolecule including a plurality of polymerisation initiators and a plurality of surface binding groups. Pendant polymers may be grafted from at least some of the polymerisation initiators.
    Type: Application
    Filed: January 20, 2012
    Publication date: July 12, 2012
    Applicant: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Laurence Meagher, Helmut Thissen, Paul Pasic, Richard Alexander Evans, Graham Johnson
  • Patent number: 8124188
    Abstract: The present invention relates to a controllable polymeric surface coating including a macromolecule, which is covalently bound to the surface of a substrate, the macromolecule including a plurality of polymerization initiators and a plurality of surface binding groups; and pendant polymers grafted from at least some of the polymerization initiators.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: February 28, 2012
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Laurence Meagher, Helmut Thissen, Paul Pasic, Richard Alexander Evans, Graham Johnson
  • Publication number: 20110166298
    Abstract: A polymer comprising a conducting or semiconducting segment coupled to a polymer segment having an insulating polymer backbone, the polymer further comprising a RAFT functional group coupled to the polymer segment, wherein there is no RAFT functional group in between the conducting or semiconducting segment and the polymer segment.
    Type: Application
    Filed: June 25, 2009
    Publication date: July 7, 2011
    Applicant: Commonwealth Scientific and Industrial Organisation
    Inventors: Ming Chen, Graeme Moad, Ezio Rizzardo, Richard Alexander Evans, Matthias Haeussler
  • Publication number: 20110147681
    Abstract: A photochromic polymer comprising at least one siloxane oligomer and at least two photochromic groups covalently linked to one or both terminuses of the siloxane oligomer and compositions containing photochromic siloxane polymers with narrow polydispersity. The photochromic polymer enhances switching speed in rigid host polymers.
    Type: Application
    Filed: June 5, 2009
    Publication date: June 23, 2011
    Applicant: ADVANCED POLYMERIK PTY LTD
    Inventors: Richard Alexander Evans, Nino Malic, Mark Robert York, Abdelselam Saeed Ali, Jonathan Andrew Campbell
  • Patent number: 7807075
    Abstract: The invention relates to a photochromic polymeric composition comprising a polymer matrix and a photochromic compound which is an adduct comprising a photochromic moiety and at least one pendant oligomer group to provide a rate of fade of the photochromic polymeric composition which is significantly changed when compared with the corresponding composition comprising the photochromic compound without said pendent oligomer. The invention also relates to a photochromic compound which is an adduct comprising a photochromic moiety and at least one pendent oligomer.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: October 5, 2010
    Assignee: Advanced Polymerik Pty Ltd
    Inventors: Richard Alexander Evans, Melissa Ann Skidmore, Lachlan Hartley Yee, Tracey Lee Hanley, David Andrew Lewis
  • Publication number: 20090093601
    Abstract: The present invention relates to a compound comprising a photochromic moiety and at least one substituent comprising a polymer chain having a carbon backbone and a plurality of functional moieties appended to the carbon backbone.
    Type: Application
    Filed: September 2, 2005
    Publication date: April 9, 2009
    Applicant: POLYMERS AUSTRALIA PTY LIMITED
    Inventors: Richard Alexander Evans, Georgina Kate Such, Thomas Paul Davis, Nino Malic, David Andrew Lewis, Jonathan Andrew Campbell
  • Patent number: 7288585
    Abstract: The instant invention discloses a composition, preferably a nanocomposite material, comprising (a) a synthetic polymer, (b) a filler such as for example a natural or synthetic phyllosilicate or a mixture of such phyllosilicates, preferably in nanoparticles, and (c) as dispersing agent a polymer based on a long chain alkyl meth(acryte).
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: October 30, 2007
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Graeme Moad, George Philip Simon, Katherine Maree Dean, Guoxin Li, Roshan Tyrrel Anton Mayadunne, Ezio Rizzardo, Richard Alexander Evans, Hendrik Wermter, Rudolf Pfaendner
  • Patent number: 7247262
    Abstract: The invention related to a photochromic polymeric composition comprising a polymer matrix and a photochromic compound which is an adduct comprising a photochromic moiety and at least one pendant oligomer group to provide a rate of fade of the photochromic polymeric composition which is significantly changed when compared with the corresponding composition comprising the photochromic compound without said pendent oligomer. The invention also relates to a photochromic compound which is an adduct comprising a photochromic moiety and at least one pendent oligomer.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: July 24, 2007
    Assignee: Polymers Australia Pty Ltd.
    Inventors: Richard Alexander Evans, Melissa Ann Skidmore, Lachlan Hartley Yee, Tracey Lee Hanley, David Andrew Lewis
  • Patent number: 6495643
    Abstract: The invention relates to compounds of the formulae: processes for their preparation, polymers, co-polymers or block co-polymers containing them or their use as monomers or co-monomers in free radical polymerization and in the manufacture of adhesives, dental composites or optical lenses.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: December 17, 2002
    Assignee: Commonwealth Scientific and Industrial Research Organization
    Inventors: Richard Alexander Evans, Ezio Rizzardo, Graeme Moad
  • Patent number: 6344556
    Abstract: The invention relates to compounds of the formulae: processes for their preparation, polymers, co-polymers or block co-polymers containing them or their use as monomers or co-monomers in free radical polymerisation and in the manufacture of adhesives, dental composites or optical lenses.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: February 5, 2002
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Richard Alexander Evans, Ezio Rizzardo, Graeme Moad
  • Patent number: 6043361
    Abstract: The invention relates to compounds of the formulae: processes for their preparation, polymers, co-polymers or block co-polymers containing them or their use as monomers or co-monomers in free radical polymerisation and in the manufacture of adhesives, dental composites or optical lenses.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: March 28, 2000
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Richard Alexander Evans, Ezio Rizzardo, Graeme Moad