Patents Represented by Attorney Michael R. Roberts

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  • Surface modified nanoparticles, methods of their preparation, and uses thereof for gene and drug delivery
    Patent number: 8226985
    Abstract: A composition comprises a surface modified nanoparticle comprising a core comprising a material selected from the group consisting of organic materials, organometallic materials, inorganic materials, metals, metal oxides, and combinations thereof; and a surface branch covalently linked to the core having the general formula (3):
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: July 24, 2012
    Assignee: International Business Machines Corporation
    Inventors: Kazuki Fukushima, James Lupton Hedrick, Alshakim Nelson, Daniel Paul Sanders
  • Cyclic carbonyl compounds with pendant carbonate groups, preparations thereof, and polymers therefrom
    Patent number: 8207351
    Abstract: A one pot method of preparing cyclic carbonyl compounds comprising an active pendant pentafluorophenyl carbonate group is disclosed. The cyclic carbonyl compounds can be polymerized by ring opening methods to form ROP polymers comprising repeat units comprising a side chain pentafluorophenyl carbonate group. Using a suitable nucleophile, the pendant pentafluorophenyl carbonate group can be selectively transformed into a variety of other functional groups before or after the ring opening polymerization.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: June 26, 2012
    Assignees: International Business Machines Corporation, Central Glass Co., Ltd.
    Inventors: Masaki Fujiwara, James Lupton Hedrick, Daniel Paul Sanders, Manabu Yasumoto
  • Polymers bearing pendant pentafluorophenyl ester groups, and methods of synthesis and functionalization thereof
    Patent number: 8143369
    Abstract: A one pot method of preparing cyclic carbonyl compounds comprising an active pendant pentafluorophenyl ester group is disclosed. The cyclic carbonyl compounds can be polymerized by ring opening methods to form ROP polymers comprising repeat units comprising a side chain pentafluorophenyl ester group. Using a suitable nucleophile, the pendant pentafluorophenyl ester group can be selectively transformed into a variety of other functional groups before or after the ring opening polymerization.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: March 27, 2012
    Assignees: International Business Machines Corporation, Central Glass Co., Ltd
    Inventors: Masaki Fujiwara, James Lupton Hedrick, Daniel Paul Sanders, Yoshiharu Terui, Manabu Yasumoto