Growing community of inventors

Sarasota, FL, United States of America

Robert A Roth

Average Co-Inventor Count = 2.00

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 = 8

Robert A Roth ↔ Karmen Lee Wheelbarger (1 patent)Robert A RothRobert A Roth (1 patent)Karmen Lee WheelbargerKarmen Lee Wheelbarger (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Advanced Technologies Group Limited (1 from 14 patents)


1 patent:

1. 5638713 - Universal backup handcuff key

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as of
1/8/2026
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