Growing community of inventors

Webster, MA, United States of America

Douglas C DeVries

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 = 29

Douglas C DeVriesDavid H Mallalieu (1 patent)Douglas C DeVriesSamuel N Apostola (1 patent)Douglas C DeVriesDouglas C DeVries (1 patent)David H MallalieuDavid H Mallalieu (7 patents)Samuel N ApostolaSamuel N Apostola (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hyde Mfg. Co. (1 from 2 patents)


1 patent:

1. 4524514 - Combination of a tool and a hollow tool sectional handle

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1/12/2026
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