Growing community of inventors

Burlington, VT, United States of America

David Shangraw

Average Co-Inventor Count = 2.00

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 = 11

David Shangraw ↔ Robert L Smith (1 patent)David ShangrawDavid Shangraw (1 patent)Robert L SmithRobert L Smith (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Blodgett Holdings, Inc. (1 from 2 patents)


1 patent:

1. 6933472 - Electric convection oven

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as of
12/20/2025
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