Patents by Inventor Maurice Simpson

Maurice Simpson 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).

  • Arginase inhibitors and methods of use thereof
    Patent number: 11912727
    Abstract: Disclosed are compounds of formula (Ia) or a pharmaceutically acceptable salt thereof, pharmaceutical compositions comprising compounds of formula (Ia) and methods of using the same for treating cancer or a respiratory inflammatory disease and inhibiting arginase: wherein R1 is —NHR1a; R1a is —H or —C(O)CH(R1b)NHR1c; and R1b is selected from —H, —(C1-C4) alkyl and CH2OR1d and R1c is —H; or R1b and R1c, together with the atom to which they are attached, form a 5-membered heterocyclic ring; and R1d is H or —CH3.
    Type: Grant
    Filed: July 10, 2023
    Date of Patent: February 27, 2024
    Assignee: AstraZeneca AB
    Inventors: Scott Nathan Mlynarski, Tyler Grebe, Sameer Kawatkar, Maurice Raymond Verschoyle Finlay, Iain Simpson, Jianyan Wang, Steve Cook, Dedong Wu
  • Wheelchair
    Patent number: 5944338
    Abstract: A wheelchair is comprised of a foldable chair, having a selectively inclinable back support, fixedly or removably attached to a castor-based platform. A foot rest is slidably attached to the platform. A padded walker and a padded head rest each having height adjustment capability are each removably attachable to the wheelchair. A leg rest having incline capability above and below the horizontal is removably attachable to the wheelchair. A selectively inclinable tray is removably attachable to the wheelchair. A toilet assembly is removably attachable to the wheelchair.
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: August 31, 1999
    Inventor: Maurice Simpson