06948264 is referenced by 56 patents and cites 131 patents.

The present invention teaches an article of footwear having a non-clogging for use on natural grass and also artificial turf surfaces. A preferred sole can include protrusions comprising a hydrophobic material having a wettability index equal to or greater than 90 degrees. The sole can include protrusions having a width at the tip in the range between 2–4 mm, a height in the range between 3–6 mm, and the closest portion of adjacent protrusions can be spaced at least 3 mm apart. In particular, the closest portion of adjacent protrusions can be spaced in the range between 3–6 mm. An alternate sole can include protrusions and traction members comprising a hydrophobic material. The present invention also teaches novel detachable cleats for use with an article of footwear.

Title
Non-clogging sole for article of footwear
Application Number
10/59882
Publication Number
6948264 (B1)
Application Date
January 29, 2002
Publication Date
September 27, 2005
Inventor
Robert M Lyden
Aloha, 97707
OR, US
Agent
Westman Champlin & Kelly P A
IPC
A43B 023/28
A43C 015/16
A43B 013/00
A43B 023/28
A43B 011/00
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