Folding knife

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20090013537A1
SERIAL NO

11822766

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The invention discloses a folding knife having a knife handle and a blade. A pivotal shaft is at an end of the knife handle; a limit slot is inside the knife handle; and a latch element is in the limit slot. The blade is pivotally coupled to the knife handle through the pivotal shaft. The blade includes a protruding pillar corresponding to a latch portion. When the blade is stored into the knife handle, the protruding pillar is fixed between the limit slot and the latch element, and the blade will not pivot out of the knife handle due to shakes or vibrations. If a predetermined force is applied to rotate the blade towards the knife handle, the protruding pillar will rotate in conformity with the blade and push the latch element, so that the protruding pillar is released and rotated with the blade in the limit slot.

First Claim

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Patent Owner(s)

Patent OwnerAddress
KAO CHIH-CHENNot Provided

International Classification(s)

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  • 2007 Application Filing Year
  • B26B Class
  • 198 Applications Filed
  • 133 Patents Issued To-Date
  • 67.18 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances200720082009201020112012201320142015201620170255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kao, Chih-Chen Taoyuan City, TW 21 197

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Patent Citation Ranking

  • 18 Citation Count
  • B26B Class
  • 56.63 % this patent is cited more than
  • 16 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges589371411431201 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 70100 +05101520253035404550556065707580859095

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