David B. MacPherson — 2 Patents at The Eastern

David B. MacPherson has been granted 2 US patents while listed as an inventor at The Eastern. The first was granted in 1983 and the most recent in May 1985. David B. MacPherson ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David B. MacPherson in Brunswick, ME, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4516281	Sewage treatment device	Jay E. Paris, Robert W. Foley, Martin W. Greinier, David N. Pulsifer	1985-05-14	$67,000
4409923	Marine anchor	—	1983-10-18

David B. MacPherson — 2 Patents

Issued Patents All Time

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