Growing community of inventors

Mt. Pleasant, IA, United States of America

Douglas James Spenner

Average Co-Inventor Count = 4.00

ph-index = 3

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 = 26

Douglas James SpennerRichard Sylvan (3 patents)Douglas James SpennerMarcus William Powell (3 patents)Douglas James SpennerJerry D Schimmelpfennig (3 patents)Douglas James SpennerDouglas James Spenner (3 patents)Richard SylvanRichard Sylvan (62 patents)Marcus William PowellMarcus William Powell (8 patents)Jerry D SchimmelpfennigJerry D Schimmelpfennig (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Lomont Molding, Inc. (3 from 12 patents)


3 patents:

1. D416630 - Reinforcing bar protection cap

2. D416631 - Reinforcing bar protection cap

3. 5884443 - Concrete reinforcing bar protective cover

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idiyas.com
as of
12/11/2025
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