Patents by Inventor William R. Leonard

William R. Leonard 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).

  • Machine learning network based carriage control apparatus for maintenance striping
    Patent number: 11983007
    Abstract: A control system for positioning a marker over a pre-existing roadway surface mark. The control system has one or more imagers having a field of view for imaging an area of roadway mark surface encompassing the roadway mark and a computer having a machine learning network to process the roadway mark image and position the marker over the pre-existing roadway mark.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: May 14, 2024
    Assignee: LIMNTECH LLC
    Inventors: Douglas D. Dolinar, William R. Haller, Charles R. Drazba, Matt W. Smith, Kyle J. Leonard, Eric M. Stahl
  • Echinocandin process
    Patent number: 7214768
    Abstract: This invention relates to an improved process for the minimization of acid-catalyzed reactions of certain echinocandins of the kind disclosed in U.S. Pat. No. 5,378,804. The process involves the use of a boronic acid.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: May 8, 2007
    Assignee: Merck & Co., Inc.
    Inventors: Kevin M. Belyk, William R. Leonard
  • Echinocandin process
    Publication number: 20040158034
    Abstract: This invention relates to an improved process for the minimization of acid-catalyzed reactions of certain echinocandins of the kind disclosed in U.S. Pat. No. 5,378,804. The process involves the use of a boronic acid.
    Type: Application
    Filed: October 10, 2003
    Publication date: August 12, 2004
    Inventors: Kevin M. Belyk, William R. Leonard
  • Gas flow transducer utilizing rolling piston
    Patent number: 4034606
    Abstract: A transducer for proportionally indicating small quantities of gas flow utilizing a rolling piston in association with a flexible electrical conducting band engaging terminals within the piston chamber. Gas flows from the chamber at an increasing rate proportional to piston displacement and the transducer is characterized by its low friction operation and capability to accurately sense low rates of gas flow.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: July 12, 1977
    Assignee: Sparton Corporation
    Inventors: Charles E. Wierzbicki, William R. Leonards