Growing community of inventors

Merrimack, NH, United States of America

Dave McDonald

Average Co-Inventor Count = 6.63

ph-index = 2

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 = 14

Dave McDonald ↔ Jeffrey W Wonderley (3 patents)Dave McDonald ↔ John DePiano (3 patents)Dave McDonald ↔ Eric Karl Litscher (3 patents)Dave McDonald ↔ Roy Heinz (3 patents)Dave McDonald ↔ Will Wear (3 patents)Dave McDonald ↔ Gregory F McCool (2 patents)Dave McDonaldDave McDonald (3 patents)Jeffrey W WonderleyJeffrey W Wonderley (107 patents)John DePianoJohn DePiano (72 patents)Eric Karl LitscherEric Karl Litscher (30 patents)Roy HeinzRoy Heinz (8 patents)Will WearWill Wear (3 patents)Gregory F McCoolGregory F McCool (13 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. American Safety Razor Company (3 from 117 patents)


3 patents:

1. 6598301 - Multi-purpose razor blade tool

2. D474668 - Razor blade tool

3. D458105 - Razor blade tool

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idiyas.com
as of
12/18/2025
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