Patents by Inventor Joerg Weissmueller

Joerg Weissmueller 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).

  • Actuation via surface chemistry induced surface stress
    Patent number: 11807946
    Abstract: A method of controlling macroscopic strain of a porous structure includes contacting a porous structure with a modifying agent which chemically adsorbs to a surface of the porous structure and modifies an existing surface stress of the porous structure. Additional methods and systems are also presented.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: November 7, 2023
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Juergen Biener, Monika M. Biener, Alex V. Hamza, Marcus Baeumer, Arne Wittstock, Joerg Weissmueller, Dominik Kramer, Raghavan Nadar Viswanath
  • Actuation via surface chemistry induced surface stress
    Patent number: 10266949
    Abstract: A method of controlling macroscopic strain of a porous structure includes contacting a porous structure with a modifying agent which chemically adsorbs to a surface of the porous structure and modifies an existing surface stress of the porous structure. A device in one embodiment includes a porous metal structure, which when contacted with a modifying agent which chemically adsorbs to a surface of the porous metal structure, exhibits a volumetric change due to modification of an existing surface stress of the porous metal structure; and a mechanism for detecting the volumetric change. Additional methods and systems are also presented.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: April 23, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Juergen Biener, Monika M. Biener, Alex V. Hamza, Marcus Baeumer, Arne Wittstock, Joerg Weissmueller, Dominik Kramer, Raghavan Nadar Viswanath
  • ACTUATION VIA SURFACE CHEMISTRY INDUCED SURFACE STRESS
    Publication number: 20180371624
    Abstract: A method of controlling macroscopic strain of a porous structure includes contacting a porous structure with a modifying agent which chemically adsorbs to a surface of the porous structure and modifies an existing surface stress of the porous structure. Additional methods and systems are also presented.
    Type: Application
    Filed: August 30, 2018
    Publication date: December 27, 2018
    Inventors: Juergen Biener, Monika M. Biener, Alex V. Hamza, Marcus Baeumer, Arne Wittstock, Joerg Weissmueller, Dominik Kramer, Raghavan Nadar Viswanath
  • Nanoporous carbon actuator and methods of use thereof
    Patent number: 8231770
    Abstract: An electrochemically driveable actuator according to one embodiment includes a nanoporous carbon aerogel composition capable of exhibiting charge-induced reversible strain when wetted by an electrolyte and a voltage is applied thereto. An electrochemically driven actuator according to another embodiment includes a nanoporous carbon aerogel composition wetted by an electrolyte; and a mechanism for causing charge-induced reversible strain of the composition. A method for electrochemically actuating an object according to one embodiment includes causing charge-induced reversible strain of a nanoporous carbon aerogel composition wetted with an electrolyte to actuate the object by the strain.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: July 31, 2012
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Juergen Biener, Theodore F. Baumann, Lihua Shao, Joerg Weissmueller
  • NANOPOROUS CARBON ACTUATOR AND METHODS OF USE THEREOF
    Publication number: 20100230298
    Abstract: An electrochemically driveable actuator according to one embodiment includes a nanoporous carbon aerogel composition capable of exhibiting charge-induced reversible strain when wetted by an electrolyte and a voltage is applied thereto. An electrochemically driven actuator according to another embodiment includes a nanoporous carbon aerogel composition wetted by an electrolyte; and a mechanism for causing charge-induced reversible strain of the composition. A method for electrochemically actuating an object according to one embodiment includes causing charge-induced reversible strain of a nanoporous carbon aerogel composition wetted with an electrolyte to actuate the object by the strain.
    Type: Application
    Filed: March 12, 2010
    Publication date: September 16, 2010
    Inventors: Juergen Biener, Theodore F. Baumann, Lihua Shao, Joerg Weissmueller
  • ACTUATION VIA SURFACE CHEMISTRY INDUCED SURFACE STRESS
    Publication number: 20090101241
    Abstract: A method of controlling macroscopic strain of a porous structure includes contacting a porous structure with a modifying agent which chemically adsorbs to a surface of the porous structure and modifies an existing surface stress of the porous structure. A device in one embodiment includes a porous metal structure, which when contacted with a modifying agent which chemically adsorbs to a surface of the porous metal structure, exhibits a volumetric change due to modification of an existing surface stress of the porous metal structure; and a mechanism for detecting the volumetric change. Additional methods and systems are also presented.
    Type: Application
    Filed: October 10, 2008
    Publication date: April 23, 2009
    Inventors: Juergen Biener, Monika M. Biener, Alex V. Hamza, Marcus Baeumer, Arne Wittstock, Joerg Weissmueller, Dominik Kramer, Raghavan Nadar Viswanath