Growing community of inventors

Whatley, MA, United States of America

Derek Richner

Average Co-Inventor Count = 1.60

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 = 62

Derek Richner ↔ Robert L Arnold (1 patent)Derek Richner ↔ James A Van Lenten (1 patent)Derek Richner ↔ Dana L Delaney (1 patent)Derek RichnerDerek Richner (2 patents)Robert L ArnoldRobert L Arnold (34 patents)James A Van LentenJames A Van Lenten (8 patents)Dana L DelaneyDana L Delaney (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hand Tool Design Corporation (2 from 50 patents)


2 patents:

1. 5913954 - Pawl for a low profile wrench

2. 5829326 - Cover plate for a ratchet wrench

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as of
12/30/2025
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