Growing community of inventors

Parkersburg, IA, United States of America

John Walvatne

Average Co-Inventor Count = 3.19

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 = 88

John WalvatneMichael D Van Mill (17 patents)John WalvatneChristopher M Self (11 patents)John WalvatneRonald Joseph Schlimgen (7 patents)John WalvatneShawn W Gerdeman (2 patents)John WalvatneDaryl Rubner (1 patent)John WalvatneRon Schlimgen (1 patent)John WalvatneRonald J Schilimgen (1 patent)John WalvatneJohn Walvatne (17 patents)Michael D Van MillMichael D Van Mill (73 patents)Christopher M SelfChristopher M Self (11 patents)Ronald Joseph SchlimgenRonald Joseph Schlimgen (45 patents)Shawn W GerdemanShawn W Gerdeman (24 patents)Daryl RubnerDaryl Rubner (4 patents)Ron SchlimgenRon Schlimgen (2 patents)Ronald J SchilimgenRonald J Schilimgen (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Unverferth Manufacturing Company, Inc. (17 from 120 patents)


17 patents:

1. 12391321 - Track configuration for a farm implement

2. 12344333 - Brake assembly for a tracked vehicle

3. 12145670 - Track assembly for farm implement

4. 11910754 - Grain cart with folding auger

5. 11780514 - Track assembly for farm implement

6. 11535316 - Brake assembly for a tracked vehicle

7. 11299222 - Track assembly for farm implement

8. 10492368 - Grain cart with folding auger

9. 10239569 - Track assembly for farm implement

10. 9848536 - Grain cart with folding auger

11. 9457854 - Track assembly for farm implement

12. 9272653 - Grain cart with folding auger

13. 9216681 - Grain cart with folding auger

14. 9205715 - Farm implement steering system with independent suspension

15. 9039340 - Grain cart with folding auger

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as of
1/11/2026
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