Growing community of inventors

Sioux Falls, SD, United States of America

Ruth E Cole

Average Co-Inventor Count = 2.00

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 = 34

Ruth E ColeJohn M Cole (2 patents)Ruth E ColeRuth E Cole (2 patents)John M ColeJohn M Cole (14 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (2 from 832,718 patents)


2 patents:

1. 4729493 - Powered seed spacer

2. 4089441 - Portable manually operated duster

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as of
12/12/2025
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