Growing community of inventors

Emporia, KS, United States of America

P David Tan

Average Co-Inventor Count = 2.00

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 = 40

P David TanVicki Sickler (1 patent)P David TanRoss E Hopkins (1 patent)P David TanP David Tan (2 patents)Vicki SicklerVicki Sickler (18 patents)Ross E HopkinsRoss E Hopkins (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hopkins Manufacturing Corporation (2 from 210 patents)


2 patents:

1. 6851200 - Reflecting lighted level

2. 4842524 - Trailer light connection systems

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as of
1/13/2026
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