Growing community of inventors

Akron, OH, United States of America

Michael H Hardman

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 = 3

Michael H Hardman ↔ Dale T Tangeman (1 patent)Michael H Hardman ↔ Richard L Kenney (1 patent)Michael H HardmanMichael H Hardman (1 patent)Dale T TangemanDale T Tangeman (1 patent)Richard L KenneyRichard L Kenney (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. The Ohio Mattress Company Licensing and Components Group (1 from 23 patents)


1 patent:

1. D369711 - Three-dimensional product display board

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12/13/2025
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