Patents by Inventor Birgit Weyand

Birgit Weyand 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).

  • Method for producing biomimetic-inspired infrared sensors from zinc phosphide microwires
    Patent number: 10217891
    Abstract: The present invention includes a method for biomimetic-inspired infrared sensors utilizing a bottom up approach. This method includes providing a sinusoidal alternating electrical field between a preformed electrode gap comprising two gold micro-electrodes. Providing single needles of zinc phosphide crystals optimized for growth conditions using a physical vapour transport. Immobilizing at least one individual zinc phosphide nanowire in the preformed electrode gap using dielectrophoretic manipulation. And, placing and contacting the at least one individual zinc phosphide nanowire in the preformed electrode gap. Two nanowires are combined to form a lambda shape for improved sensing.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: February 26, 2019
    Assignees: UNIVERSITAT DE VALENCIA, BIOMIMETICS TECHNOLOGIES INC., MEDIZINISCHE HOCHSCHULE HANNOVER
    Inventors: Meir Israelowitz, Herbert Peter von Schroeder, Syed Rizvi, Chris Holm, Christoph Gille, Birgit Weyand, Kerstin Reimers-Fadhlaoui, Peter Vogt, Vicente Muñoz-SanJosé
  • Process for producing three-dimensional tissue
    Patent number: 9222074
    Abstract: The invention provides a process for producing a three-dimensional tissue by cultivating eucaryotic cells by introducing the cells into a matrix and cultivating the cells within the matrix in a cell culture medium within a cell culture vessel under controlled dissolved oxygen conditions of the cell culture medium. The matrix contains a support containing an optical oxygen sensor, which is an oxygen-sensitive dye, which upon irradiation with an excitation wavelength changes its emission characteristics in dependence on the dissolved oxygen concentration in the surrounding medium, including a dye phosphorescing upon irradiation of an excitation wavelength, which phosphorescence is quenched by dissolved oxygen.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: December 29, 2015
    Assignees: Medizinische Hochschule Hannover, Biomimetics Technologies, Inc.
    Inventors: Meir Israelowitz, Birgit Weyand, Peter Vogt, Kerstin Reimers, Herbert von Schroeder, Christoph Gille, Elmar Schmaelzlin
  • PROCESS FOR PRODUCING THREE-DIMENSIONAL TISSUE
    Publication number: 20130337433
    Abstract: The invention provides a process for producing a three-dimensional tissue by cultivating eucaryotic cells by introducing the cells into a matrix and cultivating the cells within the matrix in a cell culture medium within a cell culture vessel under controlled dissolved oxygen conditions of the cell culture medium. The matrix contains a support containing an optical oxygen sensor, which is an oxygen-sensitive dye, which upon irradiation with an excitation wavelength changes its emission characteristics in dependence on the dissolved oxygen concentration in the surrounding medium, including a dye phosphorescing upon irradiation of an excitation wavelength, which phosphorescence is quenched by dissolved oxygen.
    Type: Application
    Filed: October 4, 2011
    Publication date: December 19, 2013
    Applicants: BIOMIMETICS TECHNOLOGIES, INC., MEDIZINISCHE HOCHSCHULE HANNOVER
    Inventors: Meir Israelowitz, Birgit Weyand