Growing community of inventors

Superior, CO, United States of America

John David Barr

Average Co-Inventor Count = 4.00

ph-index = 2

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 = 4

John David BarrMatthew Thomas Starr (3 patents)John David BarrMark Lorin Lantry (3 patents)John David BarrRichard Douglas Rector (3 patents)John David BarrJohn David Barr (3 patents)Matthew Thomas StarrMatthew Thomas Starr (86 patents)Mark Lorin LantryMark Lorin Lantry (11 patents)Richard Douglas RectorRichard Douglas Rector (9 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Spectra Logic Corporation (3 from 149 patents)


3 patents:

1. 7450331 - Variable mobile media storage system

2. 7414807 - Variable mobile media storage system

3. 7253983 - Variable media tape-based storage system

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12/4/2025
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