Patents by Inventor Roger Charles Brown

Roger Charles Brown 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).

  • Spherical ion trap and trapping ions
    Patent number: 11651949
    Abstract: A spherical ion trap includes a substrate and an ion aperture; two RF electrodes in electrostatic communication with an ion trapping region; RF ground electrodes in electrostatic communication with the ion trapping region; and the ion trapping region bounded by opposing RF electrodes and the RF ground electrodes, such that: the ion trapping region is disposed within the ion aperture and receives ions that are selectively trapped in the ion trapping region in response to receipt of DC and RF voltages by the RF electrodes, and receipt of the DC voltages by RF ground electrodes, and the first RF electrode, the second RF electrode, the RF ground electrodes, and the ion trapping region are disposed in the same plane within the ion aperture.
    Type: Grant
    Filed: February 1, 2022
    Date of Patent: May 16, 2023
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: David Ray Leibrandt, David Brian Hume, Roger Charles Brown, Jeffrey Aaron Sherman
  • SPHERICAL ION TRAP AND TRAPPING IONS
    Publication number: 20220246419
    Abstract: A spherical ion trap includes a substrate and an ion aperture; two RF electrodes in electrostatic communication with an ion trapping region; RF ground electrodes in electrostatic communication with the ion trapping region; and the ion trapping region bounded by opposing RF electrodes and the RF ground electrodes, such that: the ion trapping region is disposed within the ion aperture and receives ions that are selectively trapped in the ion trapping region in response to receipt of DC and RF voltages by the RF electrodes, and receipt of the DC voltages by RF ground electrodes, and the first RF electrode, the second RF electrode, the RF ground electrodes, and the ion trapping region are disposed in the same plane within the ion aperture.
    Type: Application
    Filed: February 1, 2022
    Publication date: August 4, 2022
    Inventors: David Ray Leibrandt, David Brian Hume, Roger Charles Brown, Jeffrey Aaron Sherman
  • Benzothiazolone derivatives
    Patent number: 6080869
    Abstract: A compound of formula I, including optical isomers thereof, whereinX represents --SO.sub.2 NH-- or --NHSO.sub.
    Type: Grant
    Filed: September 2, 1998
    Date of Patent: June 27, 2000
    Assignee: Astra Pharmaceuticals Limited
    Inventors: Roger Victor Bonnert, Roger Charles Brown
  • Benzothiazolone derivatives
    Patent number: 6008365
    Abstract: A compound of formula I, including optical isomers thereof, ##STR1## wherein X represents --SO.sub.2 NH-- or --NHSO.sub.2 --,p, q and r independently represent 2 or 3,Y represents thienyl optionally substituted by alkyl or halogen, or phenylthio- or phenyloptionally substituted by akyl or halogen, andeach R independently represents H or alkyl,and pharmaceutically acceptable salts, esters and amides thereof.
    Type: Grant
    Filed: September 2, 1998
    Date of Patent: December 28, 1999
    Assignee: Astra Pharmaceuticals Ltd.
    Inventors: Roger Victor Bonnert, Roger Charles Brown
  • Benzothiazolone derivatives
    Patent number: 5977384
    Abstract: A compound of formula I, including optical isomers thereof, ##STR1## wherein X represents --SO.sub.2 NH-- or --NHSO.sub.2 --,p, q and r independently represent 2 or 3;Y represents thienyl optionally substituted by alkyl or halogen, or phenylthio- or phenyl optionally substituted by alkyl or halogen, andeach R independently represents H or alkyl,and pharmaceutically acceptable salts, esters and amides thereof.
    Type: Grant
    Filed: September 2, 1998
    Date of Patent: November 2, 1999
    Assignee: Astra Pharmaceuticals Ltd.
    Inventors: Roger Victor Bonnert, Roger Charles Brown
  • Intermediates for making benzothiazolone derivatives
    Patent number: 5973167
    Abstract: A compound of formula I, including optical isomers thereof, ##STR1## wherein X represents --SO.sub.2 NH-- or --NHSO.sub.
    Type: Grant
    Filed: September 2, 1998
    Date of Patent: October 26, 1999
    Assignee: Astra Pharmaceuticals Ltd.
    Inventors: Roger Victor Bonnert, Roger Charles Brown
  • Benzothiazolone derivatives
    Patent number: 5846989
    Abstract: A compound of formula I, including optical isomers thereof, ##STR1## wherein X represents --SO.sub.2 NH-- or --NHSO.sub.2 --,p, q and r independently represent 2 or 3,Y represents thienyl optionally substituted by alkyl or halogen, or phenylthio- or phenyl optionally substituted by alkyl or halogen, andeach R independently represents H or alkyl,and pharmaceutically acceptable salts, esters and amides thereof.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: December 8, 1998
    Assignee: Astra Pharmaceuticals Limited
    Inventors: Roger Victor Bonnert, Roger Charles Brown, Peter Alan Cage, Francis Ince, Garry Pairaudeau