Growing community of inventors

Londonderry, NH, United States of America

Steven F Manning

Average Co-Inventor Count = 3.00

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 = 7

Steven F ManningJimmie G Perkins (1 patent)Steven F ManningDennis H Heling (1 patent)Steven F ManningSteven F Manning (1 patent)Jimmie G PerkinsJimmie G Perkins (5 patents)Dennis H HelingDennis H Heling (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ex-cell-o Gmbh (1 from 299 patents)


1 patent:

1. 4633763 - Switch and valve assembly

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12/20/2025
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