Growing community of inventors

Dubuque, IA, United States of America

Darrel Jeffrey Rowan

Average Co-Inventor Count = 5.05

ph-index = 4

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 = 50

Darrel Jeffrey RowanNeil Vincent Harber (4 patents)Darrel Jeffrey RowanMichael Eugene Kennedy (4 patents)Darrel Jeffrey RowanMartin Lavern Ruhter (3 patents)Darrel Jeffrey RowanJed Douglas Polzin (2 patents)Darrel Jeffrey RowanJosh Dean Graeve (2 patents)Darrel Jeffrey RowanNathan Joseph Horstman (1 patent)Darrel Jeffrey RowanJoshua D Graeve (1 patent)Darrel Jeffrey RowanLeroy Ernest Kraske (1 patent)Darrel Jeffrey RowanRichard Arnold Valenzuela (1 patent)Darrel Jeffrey RowanRichard John Gotto (1 patent)Darrel Jeffrey RowanCharles Jon Paul Asp (1 patent)Darrel Jeffrey RowanJames Michael Frett (1 patent)Darrel Jeffrey RowanAnthony Jon Knepper (1 patent)Darrel Jeffrey RowanMaurice Thomas Nesbitt (1 patent)Darrel Jeffrey RowanLuke John Kurth (1 patent)Darrel Jeffrey RowanJean Dean Graeve (1 patent)Darrel Jeffrey RowanCharles Jon Asp (1 patent)Darrel Jeffrey RowanMaurice T Nesbitt (1 patent)Darrel Jeffrey RowanDarrel Jeffrey Rowan (5 patents)Neil Vincent HarberNeil Vincent Harber (18 patents)Michael Eugene KennedyMichael Eugene Kennedy (12 patents)Martin Lavern RuhterMartin Lavern Ruhter (19 patents)Jed Douglas PolzinJed Douglas Polzin (10 patents)Josh Dean GraeveJosh Dean Graeve (7 patents)Nathan Joseph HorstmanNathan Joseph Horstman (36 patents)Joshua D GraeveJoshua D Graeve (16 patents)Leroy Ernest KraskeLeroy Ernest Kraske (6 patents)Richard Arnold ValenzuelaRichard Arnold Valenzuela (6 patents)Richard John GottoRichard John Gotto (5 patents)Charles Jon Paul AspCharles Jon Paul Asp (4 patents)James Michael FrettJames Michael Frett (4 patents)Anthony Jon KnepperAnthony Jon Knepper (2 patents)Maurice Thomas NesbittMaurice Thomas Nesbitt (2 patents)Luke John KurthLuke John Kurth (1 patent)Jean Dean GraeveJean Dean Graeve (1 patent)Charles Jon AspCharles Jon Asp (1 patent)Maurice T NesbittMaurice T Nesbitt (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Deere + Company (5 from 8,451 patents)


5 patents:

1. 8424632 - Input control pattern

2. 8333250 - Mounting console with visibility improvements

3. 8104566 - Arrangement of steering wheel and operator seat assembly

4. 7857070 - Control system using a single proportional valve

5. D556790 - Electronic grader control unit assembly

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as of
12/6/2025
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