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For the Inventor, By the Inventor

Shanghai, China

Hiroshi Marunaka

This inventor holds 2 USPTO granted patents. Top assignee: The Timken Company. Active years: 2004.

USPTO Granted Patents = 2

% Patents Active = 100.0

Average Co-Inventor Count = 1.7

ph-index = 2

Forward Citations = 17(Granted Patents)


Location History:

  • Shanghai, CN (2004)
  • Canton, OH (US) (2004)

Company Filing History:

goldMedal2 out of 317 
 
The Timken Company
 patents

Years Active: 2004

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2 patents (USPTO):Explore Patents
1. 6814494 - Sealed spherical roller bearing for dragline swing shaft (2004-11-09),
2. 6776552 - Ball joint with spherical rollers (2004-08-17),
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