Growing community of inventors

St. Louis, MO, United States of America

Roger L Kramer

Average Co-Inventor Count = 5.00

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 = 26

Roger L KramerJoseph Robert Nicholson (1 patent)Roger L KramerGerald M Dombek (1 patent)Roger L KramerNicholas L Allen (1 patent)Roger L KramerJeffrey L Widenor (1 patent)Roger L KramerRoger L Kramer (1 patent)Joseph Robert NicholsonJoseph Robert Nicholson (2 patents)Gerald M DombekGerald M Dombek (1 patent)Nicholas L AllenNicholas L Allen (1 patent)Jeffrey L WidenorJeffrey L Widenor (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sequa Corporation (1 from 35 patents)


1 patent:

1. 7246474 - Metal shingle system

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as of
12/13/2025
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