Growing community of inventors

Hudson, WI, United States of America

John A Worrell

Average Co-Inventor Count = 5.00

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 = 20

John A Worrell ↔ Kenneth L Smith (4 patents)John A Worrell ↔ John C Kelliher (4 patents)John A Worrell ↔ James R Imbertson (4 patents)John A Worrell ↔ Sidney A Ellingstad (4 patents)John A WorrellJohn A Worrell (4 patents)Kenneth L SmithKenneth L Smith (132 patents)John C KelliherJohn C Kelliher (10 patents)James R ImbertsonJames R Imbertson (4 patents)Sidney A EllingstadSidney A Ellingstad (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. 3m Innovative Properties Company (4 from 14,076 patents)


4 patents:

1. 10618234 - Retroreflective sheeting

2. 9878507 - Retroflective sheeting

3. 8783879 - Retroreflective sheeting

4. 8371703 - Retroreflective sheeting

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as of
12/25/2025
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