Daniel Lee Dufner — 2 Patents at John Deere

Daniel Lee Dufner has been granted 2 US patents while listed as an inventor at John Deere. All of these patents were granted in 2002. Daniel Lee Dufner ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Daniel Lee Dufner in Waterloo, IA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6467748	Hydraulic circuit for active suspension system	Troy E. Schick	2002-10-22	$9,915,000
6371459	Active suspension with offload adjustment	Troy E. Schick	2002-04-16	$9,291,000

Daniel Lee Dufner — 2 Patents

Issued Patents All Time

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