Phillip D. Heppner — 1 Patent at 3M

Phillip D. Heppner has been granted 1 US patent while listed as an inventor at 3M. All of these patents were granted in 2004. Phillip D. Heppner ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Phillip D. Heppner in Woodbury, MN, US.

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6677348	Aryl ether substituted imidazoquinolines	Leslie J. Charles, Joseph F. Dellaria, Bryon A. Merrill, John Mickelson	2004-01-13	$16,496,000

Phillip D. Heppner — 1 Patent

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