Growing community of inventors

Concord, MA, United States of America

Daniel F Hefler

Average Co-Inventor Count = 3.00

ph-index = 1

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 = 5

Daniel F Hefler ↔ William P Hidden (1 patent)Daniel F Hefler ↔ Richard L Markus (1 patent)Daniel F HeflerDaniel F Hefler (1 patent)William P HiddenWilliam P Hidden (9 patents)Richard L MarkusRichard L Markus (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. The Milford Rivet & Machine Company (1 from 2 patents)


1 patent:

1. 3955739 - Hydraulically operated riveting machine

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as of
12/28/2025
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