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For the Inventor, By the Inventor

Murrysville, PA, United States of America

John S VanKirk

This inventor holds 4 USPTO granted patents. Top assignee: Kennametal Inc.. Active years: 1994-2000.

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 2.8

ph-index = 4

Forward Citations = 57(Granted Patents)


Location History:

  • Murrysville, PA (US) (1994 - 1998)
  • Export, PA (US) (2000)

Company Filing History:

goldMedal4 out of 1,582 
 
Kennametal Inc.
 patents

Years Active: 1994-2000

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4 patents (USPTO):Explore Patents
1. 6129422 - Cutting tool holder retention system (2000-10-10),
2. 5833323 - Cutting toolholder retention system (1998-11-10),
3. 5716167 - High-speed, cartridge-type milling cutter (1998-02-10),
4. 5292213 - Coupling device for high-speed rotation (1994-03-08),
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