Patents by Inventor Craig S. Matthews

Craig S. Matthews 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).

  • Method of manufacturing surgical needles having blunt tips
    Patent number: 6174220
    Abstract: A method of manufacturing blunt tip surgical needles. Taper point needles having conventional piercing tips are placed into a vessel containing a grinding media. The needles are maintained in the vessel for a sufficient amount of time to convert the piercing point into a blunt. Additionally, the needles may be separated from the grinding media using a rotating magnetic drum such that the needles remain engaged with the magnetic drum while the grinding media is directed away to a collection tray. Needles are later removed from the magnetic drum.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: January 16, 2001
    Inventors: Jerry W. Stametz, William C. McJames, Eric W. Hinrichs, Craig S. Matthews