Growing community of inventors

West Branch, MI, United States of America

John W Friederichs

Average Co-Inventor Count = 1.41

ph-index = 3

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 20

John W FriederichsYefim Val (1 patent)John W FriederichsPrakash K Mirchandani (1 patent)John W FriederichsPaul J Krudy (1 patent)John W FriederichsJohn W Friederichs (4 patents)Yefim ValYefim Val (12 patents)Prakash K MirchandaniPrakash K Mirchandani (8 patents)Paul J KrudyPaul J Krudy (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Valenite, Inc. (3 from 90 patents)

2. Gte Valenite Corporation (1 from 95 patents)


4 patents:

1. 5918102 - Articles of ultra fine grained cemented carbide and process for making

2. 5368628 - Articles of ultra fine grained cemented carbide and process for making

3. 5338506 - Process for making non-magnetic nickel tungsten carbide cemented carbide

4. 5123788 - Cutting insert with raised cutting edge

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as of
12/19/2025
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