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US Patent 7686721 Bicycle chainring

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Patent Citations Received
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US Patent 12091133 Cinch direct mount 2X ring system
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US Patent 12060929 Chainring
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US Patent 12060928 Bicycle front sprocket
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US Patent 12024261 Bicycle crank arm and insert therefore
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US Patent 11999439 Cinch direct mount 2X ring system
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US Patent 11884363 Sprocket wheel for a bicycle drive
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US Patent 11867274 Apparatus for securing a sprocket to a sprocket carrier
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US Patent 11851135 Cinch direct mount 2X ring system
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Patent abstract

A bicycle chainring is formed from a first member and an second member. The first member includes a center rotational axis, a crank attachment portion with a plurality of chainring attachment openings and an annular tooth portion with a plurality of chain engaging gear teeth. The second member disposed around the center rotational axis and is fixedly attached to overlie at least one of the crank attachment portion and the annular tooth portion to reinforce the first member without obstructing access to the chainring attachment openings.

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US Patent 11788615 Bicycle front sprocket
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Patent Inventor Names
Atsuhiro Emura0
Hideya Inoue0
Koshi Tabe0
Masahiro Yamanaka0
Shingo Shiraishi0
Toshio Tetsuka0
Yusuke Nishimoto0
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US Patent 11713802 Alternating tooth chain ring
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US Patent 11691692 Bicycle crank arm and insert therefore
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US Patent 11680633 Chainring
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=07686721
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US Patent 07686721 Bicycle chainring US Patent 7686721 Bicycle chainring

Infobox
Patent Number
07686721
Patent Number
7686721
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Website URL
https://pdfpiw.uspto.gov/.piw?Docid=07686721
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 US Patent 07686721 Bicycle chainring

Infobox
Is a
Patent
Patent
Patent jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent number
07686721
Date of patent
March 30, 2010
Patent application number
11126143
Date Filed
May 11, 2005
Patent primary examiner
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Bradley T King

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