Patents by Inventor Liam Ellis

Liam Ellis 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).

  • Drill bit and method for producing a drill bit
    Publication number: 20050203526
    Abstract: A drill bit comprising: a shaft 103 which has a pyramidal shaped end 105 defining a drill tip with a plurality of edges defining the pyramidal shape; and one or more recesses 107 for directing away debris produced whilst drilling, the or each recess 107 having a first portion 109 extending along the shaft 103 and a second portion 111 which extends along the drill tip, wherein the second portion 111 of the or each recess 107 extends along an edge 113 of the drill tip.
    Type: Application
    Filed: August 7, 2003
    Publication date: September 15, 2005
    Inventor: Liam Ellis