Growing community of inventors

Salem, SD, United States of America

Leon G Feterl

Average Co-Inventor Count = 1.00

ph-index = 6

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 = 119

Leon G FeterlLeon G Feterl (11 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Core Industries, LLC (6 from 14 patents)

2. Sos Consolidated, Inc. (5 from 7 patents)


11 patents:

1. 5351568 - Rotary speed changing apparatus

2. 5184715 - Mechanical drive for dual conveyor system

3. 4730742 - Apparatus for lifting an elongate member

4. 4712922 - Material mixing apparatus

5. 4553898 - Swingably mounted truck hopper

6. 4457746 - Apparatus for centrifugal separation

7. 4220433 - Sweep auger drive system

8. 4002147 - Bale handling apparatus

9. 3999520 - Livestock feeding apparatus

10. 3972541 - Load coupler for trailers

11. 3939553 - Method of manufacturing a trailer frame structure

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as of
1/3/2026
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