Patents by Inventor Mark J. Stewart

Mark J. Stewart 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).

  • Abrasive article including shaped abrasive particles comprising a particular toothed body
    Patent number: 11932802
    Abstract: Various shaped abrasive particles are disclosed. Each shaped abrasive particle includes a body having at least one major surface and a side surface extending from the major surface.
    Type: Grant
    Filed: December 2, 2022
    Date of Patent: March 19, 2024
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Todd M. Cotter, Francois Wagner, Rene G. Demers, Richard J. Klok, Alexandra Marazano, Adam D. Lior, James A. Salvatore, Sujatha K. Iyengar, David F Louapre, Sidath S. Wijesooriya, Ronald Christopher Motta, Gary A. Guertin, Michael D. Kavanaugh, Doruk O. Yener, Jennifer H. Czerepinski, Jun Jia, Frederic Josseaux, Ralph Bauer, Frank J. Csillag, Yang Zhong, James P. Stewart, Mark P. Dombrowski, Sandhya Jayaraman Rukmani, Amandine Martin, Stephen E. Fox, Nilanjan Sarangi, Dean S. Matsumoto
  • Methods and systems to combine RF ablation therapy with device navigation
    Patent number: 11918280
    Abstract: Methods and systems for combining ablation therapy with navigation of the ablation device. An ablation system may be configured for use with one of two methods to prevent loss of navigation signals during ablation energy delivery. In the first method, ablation energy signals are filtered from the navigation signal. In the second method, the delivery of ablation energy is sequenced with the delivery of navigation energy such that ablation energy and navigation energy are not delivered at the same time and navigation signals received by the system are time-division multiplexed to reconstruct the navigation signals and determine a location of the device within the patient.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: March 5, 2024
    Assignee: Medtronic Ablation Frontiers LLC
    Inventors: Marshall L. Sherman, Catherine R. Condie, Trenton J. Rehberger, Steven J. Fraasch, Mark T. Stewart
  • Apparatus for issuing integrated circuit cards
    Patent number: 5949046
    Abstract: The present invention relates to an apparatus (10) for issuing integrated circuit cards (9). The apparatus includes an integrated circuit card writer (12) arranged to issue each of the integrated circuit cards (9), with information stored therein. The apparatus (10) also includes a magnetic stripe card reader (16) which is arranged to read information from a magnetic stripe card (2) inserted therein and to transmit the information to the writer (12) to be written into a blank integrated circuit card (9) stored in the writer (12). A key pad is provided (22) for entering identifying information in respect of the user of the magnetic stripe card (2) is also provided.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: September 7, 1999
    Assignee: NCR Corporation
    Inventors: Alexander R. Kenneth, Mark J. Stewart
  • Self-service terminal capable of detecting fraudulent use of an integrated circuit card
    Patent number: 5796083
    Abstract: The invention relates to an apparatus means (102,104) for detecting an attempted fraudulent use of an intergrated circuit card. The invention is characterized by a card invalidation mechanism operable to render the card permanently non-usable in response to the detection of the attempted fraudulent use.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: August 18, 1998
    Assignee: NCR Corporation
    Inventors: Alexander R. Kenneth, Mark J. Stewart
  • Method of backlighting a display panel of an ATM
    Patent number: 5739876
    Abstract: An apparatus comprises a display panel having a back side and a front side. A mirrored surface receives sunlight and reflects the sunlight towards a lens system. The lens system focuses the reflected sunlight and directs the focused light towards the back side of the display panel to provide backlighting for the display panel. The backlighting enables the front side of the display panel to be viewed with improved contrast. Preferably, the display panel is of the liquid crystal display (LCD) type, and the mirrored surface is parabolic in shape.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: April 14, 1998
    Assignee: NCR Corporation
    Inventor: Mark J. Stewart