Patents by Inventor Donovan Zielke

Donovan Zielke 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).

  • Golf club head with insert having indicia therein
    Patent number: 7959519
    Abstract: A golf club head having an insert forming a window through the golf club head is described. The golf club head has upper and lower surfaces. The golf club head includes a body with a heel, a toe, a front portion with a striking face, and a back portion. The front portion of the body forms a striking face. The body includes an aperture extending from the upper surface to the lower surface and extending from the front portion to an inside portion of the back portion. An insert is secured within the aperture. An indicia within the insert is visible from the upper and lower surfaces of the golf club head.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: June 14, 2011
    Assignee: Clear Golf, LLC
    Inventors: Donovan Zielke, Roger Twibell
  • Golf club head with insert having indicia therein
    Patent number: 7749105
    Abstract: In accordance with one embodiment of the present invention a golf club head is provided. The club head includes a heel, toe, front portion with a defined striking face, a back portion, an upper surface and a lower surface. An aperture is defined in the body as extending from the upper surface to the lower surface and extending from the front portion to an inside portion. An insert is further provided and is secured within the aperture. Lastly, an indicia is provided within the insert and is visible through the upper surface and lower surface of the golf club head. Furthermore, the aperture may extend from the striking face such that the insert of mating configuration to the aperture forms at least a portion of the striking face.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: July 6, 2010
    Inventors: Donovan Zielke, Roger Twibell, John Mathews
  • GOLF CLUB HEAD WITH INSERT HAVING INDICIA THEREIN
    Publication number: 20080312006
    Abstract: A golf club head having an insert forming a window through the golf club head is described. The golf club head has upper and lower surfaces. The golf club head includes a body with a heel, a toe, a front portion with a striking face, and a back portion. The front portion of the body forms a striking face. The body includes an aperture extending from the upper surface to the lower surface and extending from the front portion to an inside portion of the back portion. An insert is secured within the aperture. An indicia within the insert is visible from the upper and lower surfaces of the golf club head.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 18, 2008
    Applicant: CLEAR GOLF, LLC
    Inventors: Donovan Zielke, Roger Twibell
  • Golf club head with insert having indicia therein
    Publication number: 20070111816
    Abstract: In accordance with one embodiment of the present invention a golf club head is provided. The club head includes a heel, toe, front portion with a defined striking face, a back portion, an upper surface and a lower surface. An aperture is defined in the body as extending from the upper surface to the lower surface and extending from the front portion to an inside portion. An insert is further provided and is secured within the aperture. Lastly, an indicia is provided within the insert and is visible through the upper surface and lower surface of the golf club head. Furthermore, the aperture may extend from the striking face such that the insert of mating configuration to the aperture forms at least a portion of the striking face.
    Type: Application
    Filed: November 16, 2005
    Publication date: May 17, 2007
    Applicant: Element 115 Golf, LLC
    Inventors: Donovan Zielke, Roger Twibell, John Mathews