Patents by Inventor Alliwyn J. Oberholster

Alliwyn J. Oberholster 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).

  • Expanding subsonic bullet
    Patent number: 10823539
    Abstract: A bullet designed to expand reliably at subsonic velocities has a leading end region divided by notches into petals. The exterior of the bullet has a groove configured to allow limited initial bending of the petals to facilitate spreading of the petals to increase the cross-section of the bullet upon impact with a target.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: November 3, 2020
    Inventors: Alliwyn J. Oberholster, David B. Stark