Patents by Inventor Radim Dvorák

Radim Dvorák 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).

  • Patent number: 12039806
    Abstract: The invention relates to a device for biometric identification with the aid of fingerprints and/or hand characteristics, the device comprising a sensor unit (1) directed at the region of an optical gate (2) in a scanning direction (S), wherein the optical gate (2) is adapted to initialize the sensor unit (1) for scanning an in-focus scan image or scan images of the fingers and/or hand of a person, wherein the device further comprises at least one light source (5), which is likewise directed at the region of the optical gate (2), wherein the sensor unit (1), the optical gate (2) and optionally also the light source (5) are coupled to a control and computing module (6) with software for controlling the device and its parts and for scanning a scan image or the scan images of fingers and/or a hand, and for evaluating the fingerprints and/or hand characteristics, wherein the sensor unit (1) is fixedly set to focus into a focal volume (3) which is assigned to the optical gate (2), and the sensor unit (1), the optic
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: July 16, 2024
    Assignees: BRNO UNIVERSITY OF TECHNOLOGY, TOUCHLESS BIOMETRIC SYSTEMS AG
    Inventors: Michal Dvorak, Tomas Goldmann, Martin Drahansky, Martin Sakin, Radim Dvorak, Ondrej Nezhyba, Torsten Meister, Alex Zarrabi
  • Publication number: 20240216571
    Abstract: The present chitosan-based superfine fiber invention relates to compositions, formulations, and processes that result in numerous significant advantages for the production and use of superfine fiber bioactive matrices in biomedical applications. The present invention relates to superfine, chitosan-based fibers, wherein the chitosan-based fibers have a percentage chitosan content of at least about 20% w/w, and highly conformable and compliant matrices comprising such fibers, processes for their production, and related formulations. The superfine chitosan-based fibers of the invention preferably include microfibers with diameter less than or equal to about 10 microns and micron and submicron fibers that are about 2 microns and less.
    Type: Application
    Filed: January 17, 2024
    Publication date: July 4, 2024
    Inventors: Brian Clare, Radim Dvorák, Simon McCarthy, Jirí Machát
  • Publication number: 20220415095
    Abstract: The invention relates to a device for biometric identification with the aid of fingerprints and/or hand characteristics, the device comprising a sensor unit (1) directed at the region of an optical gate (2) in a scanning direction (S), wherein the optical gate (2) is adapted to initialize the sensor unit (1) for scanning an in-focus scan image or scan images of the fingers and/or hand of a person, wherein the device further comprises at least one light source (5), which is likewise directed at the region of the optical gate (2), wherein the sensor unit (1), the optical gate (2) and optionally also the light source (5) are coupled to a control and computing module (6) with software for controlling the device and its parts and for scanning a scan image or the scan images of fingers and/or a hand, and for evaluating the fingerprints and/or hand characteristics, wherein the sensor unit (1) is fixedly set to focus into a focal volume (3) which is assigned to the optical gate (2), and the sensor unit (1), the optic
    Type: Application
    Filed: January 6, 2021
    Publication date: December 29, 2022
    Inventors: Michal DVORAK, Tomas GOLDMANN, Martin DRAHANSKY, Martin SAKIN, Radim DVORAK, Ondrej NEZHYBA, Torsten MEISTER, Alex ZARRABI
  • Publication number: 20170232134
    Abstract: The present chitosan-based superfine fiber invention relates to compositions, formulations, and processes that result in numerous significant advantages for the production and use of superfine fiber bioactive matrices in biomedical applications. The present invention relates to superfine, chitosan-based fibers, wherein the chitosan-based fibers have a percentage chitosan content of at least about 20% w/w, and highly conformable and compliant matrices comprising such fibers, processes for their production, and related formulations. The superfine chitosan-based fibers of the invention preferably include microfibers with diameter less than or equal to about 10 microns and micron and submicron fibers that are about 2 microns and less.
    Type: Application
    Filed: February 13, 2017
    Publication date: August 17, 2017
    Inventors: Brian Clare, Radim Dvorák, Simon McCarthy, Jiri Machát
  • Patent number: 8865680
    Abstract: A surgical gel system for coating and adhering to a wound area to control bleeding while supporting wound healing comprises polyanhydroglucuronic acid or a biocompatible salt in an amount of from 1% to 15% by weight and pectin in an amount of in an amount of from 0.1% to 9% by weight. The gel system may be used for stopping bleeding during or after sinus surgery, for stopping bleeding in ear nose and throat procedures, for stopping bleeding in gynecological procedures, or for stopping bleeding in internal organ procedures.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: October 21, 2014
    Assignee: Hemcon Medical Technologies (IP) Limited
    Inventors: Radim Dvorak, Radka Bartosovska, Jitka Vankova, Sam Kuhn, Keith Real, Jennifer M. Genco, Jennifer Adams
  • Publication number: 20110175986
    Abstract: The invention relates to a method of bio-metric identification of persons according to the hand, by which the shape of the hand is scanned, evaluated and compared with the database of hand shapes, whereas the three-dimensional (3D) shape of the hand is scanned, this is analysed and a three-dimensional (3D) model of the hand is created, which is compared with the database of three-dimensional (3D) models of hand. The invention also relates to a device for biometric identification of persons according to the hand comprising a pad and a scanning device (2) coupled with a control and evaluating unit, while the pad comprises a positioning depression (1) in the shape of a hand, while the positioning depression (1) is whole situated in the field of view of the scanning device (2) and in the area of impact of radiation from a source (21) of light.
    Type: Application
    Filed: July 15, 2009
    Publication date: July 21, 2011
    Applicant: Brno University of Technology
    Inventors: Martin Drahansky, Filip Orsag, Radim Dvorak
  • Publication number: 20110111012
    Abstract: Wound dressing assemblies and methods of producing the wound dressing assemblies. The wound dressing assemblies various comprise individual layers of nanomaterials that have been formed according to an electrospinning process. Each of the layers can have different characteristics and qualities. The invention also provides guidance in selecting materials to form a wound dressing assembly, as well as possible adaptations to the electrospinning process to provide different characteristics for particular materials.
    Type: Application
    Filed: November 12, 2009
    Publication date: May 12, 2011
    Inventors: Clinton B. Pepper, Simon McCarthy, Keith Real, Jess Kimball, Jana Ruzickova, Jana Svobodova, Lucia Silovska, Jitka Vankova, Jiri Machat, Radim Dvorak
  • Publication number: 20100266646
    Abstract: A refined oxidised cellulose (OC) material in various salt states having therapeutic treatments for skin. The micronized OC has a uniform particle size of the order of microns (0.001 to 0.050 mm). The OC is treated by further steps of oxidation, hydrolysis and refinement. The final product is chemically known as polyanhydroglucuronic acid, (PAGA). The salt versions of the OC are generally metal salts, such as sodium, calcium, zinc, copper, and silver.
    Type: Application
    Filed: January 29, 2010
    Publication date: October 21, 2010
    Inventors: Radim Dvorak, Julieann Doyle, Keith Real
  • Publication number: 20090043089
    Abstract: A method for preparing polyanhydroglucuronic acid and/or salts thereof is described. A polyanhydroglucuronic acid-containing material obtained by oxidation is subjected to partial or complete hydrolysis to form a homogeneous system, subsequent ion exchange in the homogeneous system; and supplemental oxidation in the presence of any one or more of organic and inorganic peroxides.
    Type: Application
    Filed: September 1, 2006
    Publication date: February 12, 2009
    Inventors: Radim Dvorak, Jiri Briestensky, Ivan Santar, Anthony Richardson