Patents by Inventor David Patrick Spencer

David Patrick Spencer 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 shaft and club flex neutralization/matching and method for manufacturing same
    Patent number: 7415867
    Abstract: In accordance with the present invention, this method encompasses a shaft with a neutral flex point mark and identification mark/sticker of quantitative characteristics that has been achieved by deflecting a shaft, at its tip, a specific distance while resting in a free floating position. Shafts are then sorted by the quantitative measurement of its propensity to bend(flex weight) into sets of shafts to be assembled into golf clubs by aligning the neutral flex point mark on the golf shaft to the neutral point mark on a golf club head.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: August 26, 2008
    Inventors: David Patrick Spencer, David Bryant Bechtel
  • Golf Shaft and Club Flex Neutralization/Matching and Method for Manufacturing Same
    Publication number: 20080176669
    Abstract: In accordance with the present invention, this method encompasses a shaft with a neutral flex point mark and identification mark/sticker of quantitative characteristics that has been achieved by deflecting a shaft, at its tip, a specific distance while resting in a free floating position. Shafts are then sorted by the quantitative measurement of its propensity to bend(flex weight) into sets of shafts to be assembled into golf clubs by aligning the neutral flex point mark on the golf shaft to the neutral point mark on a golf club head.
    Type: Application
    Filed: January 23, 2007
    Publication date: July 24, 2008
    Inventors: David Patrick Spencer, David Bryant Bechtel