Robert J. Petrush — 2 Patents at 3M

Robert J. Petrush has been granted 2 US patents while listed as an inventor at 3M. The first was granted in 1994 and the most recent in December 1995. Robert J. Petrush ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Robert J. Petrush in Macedonia, OH, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5472559	Surface protecting assembly and method	James D. Cayford	1995-12-05	$14,482,000
5356503	Masking assembly and masking method for protecting surfaces from radiant heat	James D. Caryford	1994-10-18	$9,814,000

Robert J. Petrush — 2 Patents

Issued Patents All Time

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