Growing community of inventors

Waltham, MA, United States of America

Charles A Barr

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 = 13

Charles A Barr ↔ David E Van Allen (1 patent)Charles A Barr ↔ John K Zanardelli (1 patent)Charles A BarrCharles A Barr (1 patent)David E Van AllenDavid E Van Allen (11 patents)John K ZanardelliJohn K Zanardelli (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Polaroid Corporation (1 from 2,176 patents)


1 patent:

1. 4491434 - Handheld viewer for transparency film

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