Patents by Inventor Robert L. Cleek

Robert L. Cleek 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: 20140271775
    Abstract: The present disclosure is directed toward composite materials comprising high aspect ratio habits of drug crystals which can be partially or fully extending into a substrate, and additionally, can be projecting from a substrate at an angle of about 20° to about 90°. The present disclosure is directed toward medical devices, such as medical balloons, comprising said composite and methods of using and making the same. The described composite can be used for the local treatment of vascular disease. The present disclosure is also directed toward paclitaxel crystals with a hollow acicular habit.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: W.L. Gore & Associates, Inc.
    Inventors: Robert L. Cleek, Edward H. Cully, Paul D. Drumheller, Mei Li, Peter D. Traylor
  • Publication number: 20140128544
    Abstract: The present invention relates to immobilized biologically active entities that retain a significant biological activity following manipulation. The invention also comprises a medical substrate comprising a heparin entity bound onto a substrate via at least one heparin molecule, wherein said bound heparin entity is heparinase-1 sensitive.
    Type: Application
    Filed: January 14, 2014
    Publication date: May 8, 2014
    Applicant: W. L. Gore & Associates, Inc.
    Inventors: Roy Biran, Charles D. Claude, Robert L. Cleek, Paul D. Drumheller
  • Publication number: 20140105955
    Abstract: A medical device provided with at least a partial surface coating of a thermoplastic copolymer of tetrafluoroethylene and perfluoroalkylvinylether that is free of cross-linking monomers and curing agents. The fluoropolymer coating is preferably an amorphous thermoplastic, is highly inert and biocompatible, has elastomeric characteristics that provide desirable mechanical properties such as good flexibility and durability. These characteristics allow the coating to be considered “functionally transparent” because it withstands mechanical deformations required for the assembly, deployment, expansion, and placement of medical devices, without any adverse effect on the mechanical and biological functionality of the coated device. Further, its inertness, derived from the perfluorocarbon structure, contributes to its functionally transparent nature.
    Type: Application
    Filed: December 16, 2013
    Publication date: April 17, 2014
    Applicant: W. L. Gore & Associates, Inc.
    Inventors: JAMES W. CHANG, ROBERT L. CLEEK, EDWARD H. CULLY, MICHAEL J. VONESH
  • Patent number: 8691260
    Abstract: The present invention relates to immobilized biologically active entities having heparin cofactor II binding activity.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: April 8, 2014
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Robert L. Cleek, Michael D. Daly, Krzysztof R. Pietrzak
  • Publication number: 20140072514
    Abstract: The present disclosure is directed to a class of fluorinated copolymers, such as PTFE copolymers, that can be dissolved in low toxicity solvents, such as Class III Solvents, and that enable the creation of stable water-in-solvent emulsions comprising the fluorinated copolymers dissolved in a low toxicity solvents and a hydrophilic agent (e.g., a therapeutic agent) dissolved in an aqueous solvent, such as water or saline.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 13, 2014
    Applicant: W. L. Gore & Associates, Inc.
    Inventors: Robert L. Cleek, Edward H. Cully, Paul D. Drumheller, Theresa A. Holland
  • Publication number: 20140072518
    Abstract: The present disclosure is directed to a class of fluorinated copolymers, such as a PTFE copolymers, that can be dissolved in low toxicity solvents, such as Class III Solvents, and that enable the creation of stable water-in-solvent emulsions comprising the fluorinated copolymers dissolved in a low toxicity solvents and a hydrophilic agent (e.g., a therapeutic agent) dissolved in an aqueous solvent, such as water or saline.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 13, 2014
    Applicant: W. L. Gore & Associates, Inc.
    Inventors: Robert L. Cleek, Paul D. Drumheller, Theresa A. Holland
  • Publication number: 20140066897
    Abstract: The invention is directed to delivery medical devices that enable consistent “on-demand” delivery of therapeutic agents to a vessel. The medical device of the current invention comprises retractable sheath comprising neckable elements. The medical device of the current invention comprises an expandable member, a hydrophilic coating comprising at least one therapeutic agent about the expandable member or structural layer and a retractable outer sheath with a selectively permeable microstructure. The design and methods disclosed herein ensures that therapeutic agent delivery occurs essentially only during retraction of the outer sheath, minimizing coating and/or therapeutic agent loss to the bloodstream and providing controlled delivery to the treatment site.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 6, 2014
    Applicant: W. L. Gore & Associates, Inc.
    Inventors: Carey V. Campbell, Robert L. Cleek, Edward H. Cully, Peter Heicksen, Theresa A. Holland, Thane L. Kranzler, Mei Li, Bruce M. Steinhaus, Benjamin M. Trapp, Thomas G. Triebes, Michael J. Vonesh
  • Patent number: 8609125
    Abstract: A medical device provided with at least a partial surface coating of a thermoplastic copolymer of tetrafluoroethylene and perfluoroalkylvinylether that is free of cross-linking monomers and curing agents. The fluoropolymer coating is preferably an amorphous thermoplastic, is highly inert and biocompatible, has elastomeric characteristics that provide desirable mechanical properties such as good flexibility and durability. These characteristics allow the coating to be considered “functionally transparent” because it withstands mechanical deformations required for the assembly, deployment, expansion, and placement of medical devices, without any adverse effect on the mechanical and biological functionality of the coated device. Further, its inertness, derived from the perfluorocarbon structure, contributes to its functionally transparent nature.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: December 17, 2013
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: James W. Chang, Robert L. Cleek, Edward H. Cully, Michael J. Vonesh
  • Patent number: 8591932
    Abstract: The present invention relates to immobilized biologically active entities that retain a significant biological activity following manipulation. The invention also comprises a medical substrate comprising a heparin entity bound onto a substrate via at least one heparin molecule, wherein said bound heparin entity is heparinase-1 sensitive.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: November 26, 2013
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Robert L. Cleek, Paul D Drumheller, Mei Li, Nora Mardirosian
  • Publication number: 20130253426
    Abstract: The invention is directed to eluting medical devices that enable consistent “on-demand” delivery of therapeutic agents to a vessel. The medical device of the current invention comprises an expandable member, a hydrophilic coating comprising at least one therapeutic agent about the expandable member or structural layer and an outer sheath with a variably permeable microstructure. The design and methods disclosed herein ensures that therapeutic agent delivery occurs essentially only during expansion of the expandable member, minimizing coating and/or therapeutic agent loss to the bloodstream and providing controlled delivery to the treatment site.
    Type: Application
    Filed: September 4, 2012
    Publication date: September 26, 2013
    Applicant: W. L. Gore & Associates, Inc.
    Inventors: Carey V. Campbell, Robert L. Cleek, Daniel L. Crandall, James F. Davidson, Paul D. Drumheller, Cody L. Hartman, Theresa A. Holland, Thane L. Krazler, Mei Li, Gregory LoStracco, Bruce M. Steinhaus, Benjamin M. Trapp, Thomas G. Triebes
  • Patent number: 8496953
    Abstract: The present invention is directed to immobilized biologically active entities that retain significant biological activity following sterilization of the immobilized biologically active entities.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: July 30, 2013
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Robert L. Cleek, Michael D. Daly, Krzysztof R. Pietrzak
  • Patent number: 8409604
    Abstract: The present invention relates to immobilized biologically active entities having heparin cofactor II binding activity.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: April 2, 2013
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Robert L. Cleek, Michael D. Daly, Krzysztof R. Pietrzak
  • Publication number: 20130035665
    Abstract: A method of occluding includes imbibing a porous elongate element comprised of ePTFE with a calcium-containing solution. The method also includes delivering, via a delivery catheter, the calcium-imbibed porous elongate element to a target occlusion site. The method further includes administering, after the calcium-imbibed porous elongate element has been completely delivered to the target occlusion site and resides entirely within a volume defined by the target occlusion site, an alginate-containing solution to the target occlusion site.
    Type: Application
    Filed: August 2, 2012
    Publication date: February 7, 2013
    Inventors: Chaokang Chu, Robert L. Cleek, Edward H. Cully, Jeffrey Duncan, Krzysztof R. Pietrzak, Edward Emil Shaw, Michael J. Vonesh, Eric H. Zacharias
  • Publication number: 20120310210
    Abstract: The invention is directed to eluting medical devices that enable consistent “on-demand” delivery of therapeutic agents to a vessel. The medical device of the current invention comprises an expandable member, a hydrophilic coating comprising at least one therapeutic agent about the expandable member or structural layer and an outer sheath with a variably permeable microstructure. The design and methods disclosed herein ensures that therapeutic agent delivery occurs essentially only during expansion of the expandable member, minimizing coating and/or therapeutic agent loss to the bloodstream and providing controlled delivery to the treatment site.
    Type: Application
    Filed: March 1, 2012
    Publication date: December 6, 2012
    Inventors: Carey V. Campbell, Robert L. Cleek, Theresa A. Holland, Thane L. Kranzler, Benjamin M. Trapp
  • Publication number: 20120207791
    Abstract: The present invention relates to immobilized biologically active entities having heparin cofactor II binding activity.
    Type: Application
    Filed: August 11, 2011
    Publication date: August 16, 2012
    Inventors: Robert L. Cleek, Michael D. Daly, Krzysztof R. Pietrzak
  • Publication number: 20120065721
    Abstract: A medical device provided with at least a partial surface coating of a thermoplastic copolymer of tetrafluoroethylene and perfluoroalkylvinylether that is free of cross-linking monomers and curing agents. The fluoropolymer coating is preferably an amorphous thermoplastic, is highly inert and biocompatible, has elastomeric characteristics that provide desirable mechanical properties such as good flexibility and durability. These characteristics allow the coating to be considered “functionally transparent” because it withstands mechanical deformations required for the assembly, deployment, expansion, and placement of medical devices, without any adverse effect on the mechanical and biological functionality of the coated device. Further, its inertness, derived from the perfluorocarbon structure, contributes to its functionally transparent nature.
    Type: Application
    Filed: October 27, 2011
    Publication date: March 15, 2012
    Inventors: James W. Chang, Robert L. Cleek, Edward H. Cully, Michael J. Vonesh
  • Publication number: 20110293689
    Abstract: The present invention relates to immobilized biologically active entities having heparin cofactor II binding activity.
    Type: Application
    Filed: August 11, 2011
    Publication date: December 1, 2011
    Inventors: Robert L. Cleek, Michael D. Daly, Krzysztof R. Pietrzak
  • Publication number: 20110268781
    Abstract: The present invention relates to materials having therapeutic compositions releasably contained within the materials. The materials are configured to release therapeutic compositions at a desired rate. The present invention also relates to devices incorporating the materials.
    Type: Application
    Filed: May 9, 2011
    Publication date: November 3, 2011
    Applicant: Gore Enterprise Holdings, Inc.
    Inventors: Robert L. Cleek, Edward H. Cully, Jeffrey B. Duncan, Theresa A. Holland, Thomas R. McDaniel, Christine M. Scotti
  • Patent number: 8048440
    Abstract: A medical device provided with at least a partial surface coating of a thermoplastic copolymer of tetrafluoroethylene and perfluoroalkylvinylether that is free of cross-linking monomers and curing agents. The fluoropolymer coating is preferably an amorphous thermoplastic, is highly inert and biocompatible, has elastomeric characteristics that provide desirable mechanical properties such as good flexibility and durability. These characteristics allow the coating to be considered “functionally transparent” because it withstands mechanical deformations required for the assembly, deployment, expansion, and placement of medical devices, without any adverse effect on the mechanical and biological functionality of the coated device. Further, its inertness, derived from the perfluorocarbon structure, contributes to its functionally transparent nature.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: November 1, 2011
    Assignee: Gore Enterprise Holdings, Inc.
    Inventors: James W. Chang, Robert L. Cleek, Edward H. Cully, Michael J. Vonesh
  • Patent number: 8021677
    Abstract: The present invention relates to immobilized biologically active entities having heparin cofactor II binding activity.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: September 20, 2011
    Assignee: Gore Enterprise Holdings, Inc.
    Inventors: Robert L. Cleek, Michael D. Daly, Krzysztof R. Pietrzak