Erik B. Haffner — 1 Patent at Zero Zone

Erik B. Haffner has been granted 1 US patent while listed as an inventor at Zero Zone. All of these patents were granted in 2007. Erik B. Haffner ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Erik B. Haffner in Ramsey, MN, US.

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
7231783	Oil control system for a refrigeration system	Steve Esslinger	2007-06-19

Erik B. Haffner — 1 Patent

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