DuWayne A. Marthaller — 1 Patent at Unknown

DuWayne A. Marthaller has been granted 1 US patent while listed as an inventor at Unknown. All of these patents were granted in 2001. DuWayne A. Marthaller ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list DuWayne A. Marthaller in Mandan, ND, US.

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6272775	Rear dumping dragline bucket and rigging system	Don F. Schmidt, Karl Lemmerman, Dean Bray, William Lengenfelder, R. Steven Metzger	2001-08-14

DuWayne A. Marthaller — 1 Patent

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