Growing community of inventors

Perkiomenville, PA, United States of America

Don R Tunnell

Average Co-Inventor Count = 5.00

ph-index = 3

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 = 15

Don R TunnellSteven Michael Weinrich (3 patents)Don R TunnellEric Paul Grove (3 patents)Don R TunnellJames C Long (3 patents)Don R TunnellGeorge E Bachman (3 patents)Don R TunnellDon R Tunnell (3 patents)Steven Michael WeinrichSteven Michael Weinrich (23 patents)Eric Paul GroveEric Paul Grove (13 patents)James C LongJames C Long (6 patents)George E BachmanGeorge E Bachman (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Invensys Systems, Inc. (3 from 383 patents)


3 patents:

1. 8117300 - Supporting both asynchronous and synchronous data transfers between production event information sources and a production information database

2. 7895315 - Supporting extensions to production event message schemes via production database server versioning

3. 7840293 - Caching identifications and associated production database guids for expedited acquisition of linking information contained within multiple distinct production database tables

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as of
12/12/2025
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