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Shoreview, MN, United States of America

Joseph M Check

Average Co-Inventor Count = 1.41

ph-index = 3

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 = 32

Joseph M CheckDonald B Schnotala (1 patent)Joseph M CheckMichael G Roy (1 patent)Joseph M CheckE Smith Reed, Jr (1 patent)Joseph M CheckJoseph M Check (4 patents)Donald B SchnotalaDonald B Schnotala (6 patents)Michael G RoyMichael G Roy (2 patents)E Smith Reed, JrE Smith Reed, Jr (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. The Toro Company (2 from 823 patents)

2. Other (1 from 832,718 patents)

3. Check Signature, Inc. (1 from 1 patent)


4 patents:

1. 6247243 - Turf inspection instrument and method

2. 5450678 - Grass length measuring device

3. 4970852 - Grass catcher for reel mower

4. 4191007 - Reel mower shield assembly

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as of
12/12/2025
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