Patents by Inventor Sean Shaheen

Sean Shaheen 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: 20230313032
    Abstract: Cooperative energy pooling systems based on polymeric acceptors are provided herein. These systems exhibit delayed excitation of the acceptor when excited at sensitizer absorption wavelengths, and displayed CEP occurring on a timescale of tens to hundreds of picoseconds.
    Type: Application
    Filed: August 20, 2021
    Publication date: October 5, 2023
    Inventors: Sean Shaheen, Daniel Weingarten, Michael LaCount, Mark T. Lusk, Jao Van de Lagemaat, Garry Rumbles
  • Patent number: 11540909
    Abstract: Disclosed methods include formulating azobenzene-based polymer networks to induce a modulus change in a highly crosslinked polymer, in vivo, with no external heat requirement and using a benign light as the source of stimuli. A modulus change can be achieved via a coating on the substrate and within the bulk of the substrate via photoexposure. The azobenzene-based polymer network can be formed as a coating or in the bulk of a material from either a glassy composition comprising methyl methacrylate (MMA), poly (methyl methacrylate) (PMMA), and triethylene glycol dimethacrylate (TEGDMA) or a soft material comprising of long-chain difunctional acrylates. The disclosed technology also includes methods of biofilm disruption and removal from the surface of a substrate, and includes methods of inhibiting biofilm growth and cell attachment to a substrate.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: January 3, 2023
    Assignee: THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE
    Inventors: Devatha Nair, Robert Mcleod, Sean Shaheen, Gannon Kehe, Michael Schurr, Ram Nagaraj
  • Publication number: 20200262993
    Abstract: Disclosed methods include formulating azobenzene-based polymer networks to induce a modulus change in a highly crosslinked polymer, in vivo, with no external heat requirement and using a benign light as the source of stimuli. A modulus change can be achieved via a coating on the substrate and within the bulk of the substrate via photoexposure. The azobenzene-based polymer network can be formed as a coating or in the bulk of a material from either a glassy composition comprising methyl methacrylate (MMA), poly (methyl methacrylate) (PMMA), and triethylene glycol dimethacrylate (TEGDMA) or a soft material comprising of long-chain difunctional acrylates. The disclosed technology also includes methods of biofilm disruption and removal from the surface of a substrate, and includes methods of inhibiting biofilm growth and cell attachment to a substrate.
    Type: Application
    Filed: August 21, 2018
    Publication date: August 20, 2020
    Inventors: Devatha NAIR, Robert MCLEOD, Sean SHAHEEN, Gannon KEHE, Michael SCHURR, Ram NAGARAJ
  • Publication number: 20180066132
    Abstract: The disclosed technology is directed to conductive polymeric compositions, and methods of manufacturing and using conductive polymer compositions. Specifically, the disclosed technology includes customizing conductive compositions, including conductive polymers and nanogels, with a range of physical and mechanical properties tailored to various applications, including drug delivery, contrast for medical imaging (e.g., optical coherence tomography electrochromics), smart lenses, etc.
    Type: Application
    Filed: March 31, 2016
    Publication date: March 8, 2018
    Inventors: Devatha P. Nair, Malik Y. Kahook, Zefram Marks, Sean Shaheen, Robert R. McLeod
  • Publication number: 20060107996
    Abstract: A photovoltaic cell is described having a photoactive layer (4) made of two components, namely a conjugated polymer component as an electron donor and a fullerene component as an electron acceptor. In order to provide advantageous conditions, it is suggested that the two components and their mixed phases have an average largest grain size smaller than 500 nm in at least some sections of photoactive layer (4).
    Type: Application
    Filed: April 27, 2001
    Publication date: May 25, 2006
    Inventors: Sean Shaheen, Christoph Brabec, Thomas Fromherz, Franz Padinger, Serdar Sariciftci, Erhard Gloetzl
  • Patent number: 6933436
    Abstract: A photovoltaic cell is described, having a photoactive layer (4) made of two molecular components, namely an electron donor and an electron acceptor, particularly a conjugated polymer component and a fullerene component, and having two metallic electrodes (2, 5) provided on both sides of the photoactive layer (4). In order to provide advantageous construction ratios, it is suggested that an electrically insulating transition layer (6), having a thickness of at most 5 nm, be provided between at least one electrode (5) and the photoactive layer (4).
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: August 23, 2005
    Assignee: Konarka Austria Forschungs und Entwicklungs GmbH
    Inventors: Sean Shaheen, Christoph Brabec, Thomas Fromherz, Franz Padinger, Sedar Sariciftci, Erhard Gloetzl
  • Patent number: 6812399
    Abstract: A photovoltaic cell is described, having a photoactive layer (4) made of two molecular components, namely an electron donor and an electron acceptor, particularly a conjugated polymer component and a fullerene component, and having two metallic electrodes (2, 6) provided on both sides of the photoactive layer (4). In order to provide advantageous construction conditions, it is suggested that an intermediate layer (5) made of a conjugated polymer, which has doping corresponding to the electrode potential and, in regard to the electron energy, has a band gap between the valence band and the conduction band of at least 1.8 eV, be provided between the photoactive layer (4) and at least one electrode (2,6).
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: November 2, 2004
    Assignee: QSEL-Quantum Solar Energy Linz Forschungs-Und Entwick-Lungs-Gesellsch
    Inventors: Sean Shaheen, Christoph Brabec, Thomas Fromherz, Franz Padinger, Sedar Sariciftci, Erhard Gloetzl
  • Publication number: 20040094196
    Abstract: A photovoltaic cell is described, having a photoactive layer (4) made of two molecular components, namely an electron donor and an electron acceptor, particularly a conjugated polymer component and a fullerene component, and having two metallic electrodes (2, 5) provided on both sides of the photoactive layer (4). In order to provide advantageous construction ratios, it is suggested that an electrically insulating transition layer (6), having a thickness of at most 5 nm, be provided between at least one electrode (5) and the photoactive layer (4).
    Type: Application
    Filed: May 22, 2003
    Publication date: May 20, 2004
    Inventors: Sean Shaheen, Christoph Brabec, Thomas Fromherz, Franz Padinger, Sedar Sariciftci, Erhard Gloetzl
  • Publication number: 20030159729
    Abstract: A photovoltaic cell is described, having a photoactive layer (4) made of two molecular components, namely an electron donor and an electron acceptor, particularly a conjugated polymer component and a fullerene component, and having two metallic electrodes (2, 6) provided on both sides of the photoactive layer (4). In order to provide advantageous construction conditions, it is suggested that an intermediate layer (5) made of a conjugated polymer, which has doping corresponding to the electrode potential and, in regard to the electron energy, has a band gap between the valence band and the conduction band of at least 1.8 eV, be provided between the photoactive layer (4) and at least one electrode (2,6).
    Type: Application
    Filed: February 27, 2003
    Publication date: August 28, 2003
    Inventors: Sean Shaheen, Christoph Brabec, Thomas Fromherz, Franz Padinger, Sedar Sariciftci, Erhard Gloetzl