Patents by Inventor R. Mark Allen

R. Mark Allen 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).

  • Reinforced metal golf club head
    Patent number: 5292129
    Abstract: There is disclosed a hollow reinforced metal golf club head in the shape of a driver. The golf club head is reinforced by at least one rib and preferably three ribs each of which extends along or between the internal surface of the striking face and the intemal surface of the top side to reinforce both the striking face and the top side. In addition, the top side has a pattern of corrugated reinforcing protrusions, preferably in the shape of gear teeth, extending rearwardly from adjacent the striking face. The sole of the club head has at least one ridge, and preferably three ridges, each of which extends along more than half the length of the sole and terminates short of the striking face and short of the back side.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: March 8, 1994
    Assignee: MacGregor Golf Company
    Inventors: D. Clayton Long, R. Mark Allen
  • Reinforced metal golf club head
    Patent number: 5213328
    Abstract: There is disclosed a hollow reinforced metal golf club head in the shape of a driver. The golf club head is reinforced by at least one rib and preferably three ribs each of which extends along or between the internal surface of the striking face and the internal surface of the top side to reinforce both the striking face and the top side. In addition, the top side has a pattern of corrugated reinforcing protrusions, preferably in the shape of gear teeth, extending rearwardly from adjacent the striking face. The sole of the club head has at least one ridge, and preferably three ridges, each of which extends along more than half the length of the sole and terminates short of the striking face and short of the back side.
    Type: Grant
    Filed: January 23, 1992
    Date of Patent: May 25, 1993
    Assignee: MacGregor Golf Company
    Inventors: D. Clayton Long, R. Mark Allen
  • Reinforced metal golf club head
    Patent number: D344772
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: March 1, 1994
    Assignee: MacGregor Golf Company
    Inventors: D. Clayton Long, R. Mark Allen
  • Reinforced metal golf club head
    Patent number: D354784
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: January 24, 1995
    Assignee: MacGregor Golf Co.
    Inventors: D. Clayton Long, R. Mark Allen