Frederick Mark — 2 Patents at Spartus

Frederick Mark has been granted 2 US patents while listed as an inventor at Spartus. The first was granted in 1984 and the most recent in November 1993. Frederick Mark ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Frederick Mark in Lebanon, PA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
D341641	Recreational ball	Richard F. Genovese	1993-11-23
4453631	Phonograph record album and slip case	—	1984-06-12	$291,000

Frederick Mark — 2 Patents

Issued Patents All Time

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