Growing community of inventors

Hawthorn Woods, IL, United States of America

David J Henke

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 = 37

David J HenkeStephen Neal Hardy (172 patents)David J HenkeMax E Syvuk (1 patent)David J HenkeKent Bach (1 patent)David J HenkeJohn Ward (9 patents)David J HenkeAdam Gold (8 patents)David J HenkeJohn W Swafford (2 patents)David J HenkeDavid J Henke (1 patent)Stephen Neal HardyStephen Neal Hardy (172 patents)Max E SyvukMax E Syvuk (13 patents)Kent BachKent Bach (10 patents)John WardJohn Ward (9 patents)Adam GoldAdam Gold (8 patents)John W SwaffordJohn W Swafford (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Rtc Industries, Inc. (1 from 226 patents)


1 patent:

1. 5924367 - Shelf sign system

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as of
12/19/2025
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