Growing community of inventors

Littleton, NC, United States of America

Harold Frederick Hogrefe

Average Co-Inventor Count = 8.00

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 = 18

Harold Frederick Hogrefe ↔ David S Chapin (1 patent)Harold Frederick Hogrefe ↔ Daniel M Stipe (1 patent)Harold Frederick Hogrefe ↔ Alan D Anderson (1 patent)Harold Frederick Hogrefe ↔ Adam Joseph Milligan (1 patent)Harold Frederick Hogrefe ↔ Steven J Wegzyn (1 patent)Harold Frederick Hogrefe ↔ Timothy Burch Miller (1 patent)Harold Frederick Hogrefe ↔ Jeanne Allynn White (1 patent)Harold Frederick HogrefeHarold Frederick Hogrefe (1 patent)David S ChapinDavid S Chapin (41 patents)Daniel M StipeDaniel M Stipe (13 patents)Alan D AndersonAlan D Anderson (6 patents)Adam Joseph MilliganAdam Joseph Milligan (1 patent)Steven J WegzynSteven J Wegzyn (1 patent)Timothy Burch MillerTimothy Burch Miller (1 patent)Jeanne Allynn WhiteJeanne Allynn White (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Cooper Industries, Inc. (1 from 901 patents)


1 patent:

1. D414096 - Screw driver handle

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12/3/2025
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