PISTON RING

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20100117304A1
SERIAL NO

12527023

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A piston ring, having a base body, which comprises a substantially circumferential running surface, which has an upper and a lower flank surface, an inner circumferential surface, and a butt opening provided with defined butt clearance, wherein the transition of the running surface butt edge into the respective butt surface is configured as a sharp edge, and the running surface is provide with at least one PVD cover layer ≦10 μm at least up to the respective running surface butt edge.

First Claim

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Patent Owner(s)

Patent OwnerAddress
FEDERAL-MOGUL BURSCHEID GMBHGERMANY 'BOOLEAN BURSCHEID NORTH RHINE-WESTPHALIA

International Classification(s)

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  • 2008 Application Filing Year
  • F16J Class
  • 360 Applications Filed
  • 166 Patents Issued To-Date
  • 46.12 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances200820092010201120122013201420152016201720180255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Esser, Johannes Odenthal, DE 8 39
Münchow, Frank Wermelskirchen, DE 7 39

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Patent Citation Ranking

  • 5 Citation Count
  • F16J Class
  • 4.33 % this patent is cited more than
  • 15 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges111824974101 - 1011 - 2021 - 3031 - 4041 - 500102030405060708090100110120130140150160170180190200

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