Growing community of inventors

Methuen, MA, United States of America

Karen Girard

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 = 0

Karen GirardJohn J Ronan (1 patent)Karen GirardGeorge Zugravu (1 patent)Karen GirardKaren Girard (1 patent)John J RonanJohn J Ronan (5 patents)George ZugravuGeorge Zugravu (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Parker-Hannifin Corporation (1 from 1,663 patents)


1 patent:

1. 8608836 - Integral hydrogen and air purifier

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1/6/2026
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