Growing community of inventors

Leighton, IA, United States of America

Edwin Spoelstra

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 = 2

Edwin Spoelstra ↔ Nathan Meyer (1 patent)Edwin Spoelstra ↔ Stuart Ronald Harrison (1 patent)Edwin Spoelstra ↔ Stuart Harrison (0 patent)Edwin Spoelstra ↔ Nathan James Meyer (0 patent)Edwin SpoelstraEdwin Spoelstra (1 patent)Nathan MeyerNathan Meyer (19 patents)Stuart Ronald HarrisonStuart Ronald Harrison (11 patents)Stuart HarrisonStuart Harrison (0 patent)Nathan James MeyerNathan James Meyer (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Vermeer Manufacturing Company, Inc. (1 from 470 patents)

2. Spoelstra, Edwin (0 patent)

3. Meyer, Nathan, James (0 patent)


1 patent:

1. 9506344 - Tunneling apparatus

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12/29/2025
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