Growing community of inventors

Rockford, IL, United States of America

Daniel M Eisman

Average Co-Inventor Count = 2.26

ph-index = 6

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 = 63

Daniel M Eisman ↔ Robert H Youngren (6 patents)Daniel M Eisman ↔ Christopher Aiston (3 patents)Daniel M Eisman ↔ Daniel Loveland (3 patents)Daniel M Eisman ↔ Jack Harkins (3 patents)Daniel M EismanDaniel M Eisman (7 patents)Robert H YoungrenRobert H Youngren (18 patents)Christopher AistonChristopher Aiston (7 patents)Daniel LovelandDaniel Loveland (3 patents)Jack HarkinsJack Harkins (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Estwing Manufacturing Company, Inc. (7 from 25 patents)


7 patents:

1. D672218 - Hammer

2. D604136 - Hammer

3. D601398 - Hammer

4. 7404346 - Striking tool with weight forward head

5. 6976406 - Striking tool with weight forward head

6. 6647829 - Striking tool with weight forward head

7. 6465535 - Grip material

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as of
12/7/2025
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