Patents by Inventor Peter Grutter

Peter Grutter 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: 20200054999
    Abstract: The apparatus for making a nanopore in a membrane generally has an electrode configured to connect to one of two opposing surfaces of the membrane; a conductive tip configured to contact a location of the other one of the two opposing surfaces of the membrane; and a voltage source electrically connected between the electrode and the conductive tip and operable to generate an electric potential across the membrane, the electric potential locally removing material of the membrane at the location to make the nanopore.
    Type: Application
    Filed: May 17, 2018
    Publication date: February 20, 2020
    Inventors: Peter GRUTTER, Yuning ZHANG, Yoichi MIYAHARA, Walter REISNER
  • Patent number: 9671424
    Abstract: Energy dissipation measurements in Frequency Modulation-Atomic Force Microscopy (FM-AFM) should provide additional information for dynamic force measurements as well as energy dissipation maps for robust material properties imaging as they should not be dependent directly upon the cantilever surface interaction regime. However, unexplained variabilities in experimental data have prevented progress in utilizing such energy dissipation studies. The inventors have demonstrated that the frequency response of the piezoacoustic cantilever excitation system, traditionally assumed flat, can actually lead to surprisingly large apparent damping by the coupling of the frequency shift to the drive-amplitude signal. Accordingly, means for correcting this source of apparent damping are presented allowing dissipation measurements to be reliably obtained and quantitatively compared to theoretical models.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: June 6, 2017
    Assignee: The Royal Institution of the Advancement of Learning/McGill University
    Inventors: Aleksander Labuda, Peter Grutter, Yoichi Miyahara, William Paul, Antoine Roy-Gobeil
  • Publication number: 20150020245
    Abstract: Energy dissipation measurements in Frequency Modulation-Atomic Force Microscopy (FM-AFM) should provide additional information for dynamic force measurements as well as energy dissipation maps for robust material properties imaging as they should not be dependent directly upon the cantilever surface interaction regime. However, unexplained variabilities in experimental data have prevented progress in utilizing such energy dissipation studies. The inventors have demonstrated that the frequency response of the piezoacoustic cantilever excitation system, traditionally assumed flat, can actually lead to surprisingly large apparent damping by the coupling of the frequency shift to the drive-amplitude signal. Accordingly, means for correcting this source of apparent damping are presented allowing dissipation measurements to be reliably obtained and quantitatively compared to theoretical models.
    Type: Application
    Filed: March 13, 2013
    Publication date: January 15, 2015
    Inventors: Aleksander Labuda, Peter Grutter, Yoichi Miyahara, William Paul, Antoine Roy-Gobeil
  • Patent number: 6271906
    Abstract: Liquid cell crystal, with fine structures made up of regions having defined different orientation and dimensions of the order of 0.1 to about 100 &mgr;m can be used as optical conductors and projection displays. The fine structures in the liquid crystals are produced in that the plates bounding and guiding the liquid crystal are provided with micromechanically produced regions having different defined preferred directions. The result is a molecular orientation having a higher refractive index that the surrounding region for guiding and polarizing irradiated light. The orienting layers on the plates bounding the liquid crystal are micromechanically structured in that certain spatial regions are mechanically structured in a uniform direction by a stylus moved by piezoelectric means.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: August 7, 2001
    Assignee: Rolic AG
    Inventors: Jürg Fünfschilling, Peter Grütter, Hans-Josef Hug, Thomas A. Jung, Udo Schwarz
  • Patent number: 4549008
    Abstract: Novel tetraglycidyl ethers of the formula ##STR1## wherein X is a group ##STR2## R is hydrogen or methyl, and n is an integer from 2 to 4. The novel tetraglycidyl ethers can be used in curable mixtures, together with a curing agent for epoxide resins, in particular for the protection of surfaces.
    Type: Grant
    Filed: August 13, 1984
    Date of Patent: October 22, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: Alfred Renner, Peter Grutter, Rolf Hugi