Douglas Graham — 4 Patents at Unknown

Douglas Graham has been granted 4 US patents while listed as an inventor at Unknown. The first was granted in 1983 and the most recent in September 2004. Douglas Graham ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Douglas Graham in Guildford, NJ, GB.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
6789680	Screen assembly for vibratory separator	Kerry Ward, David Vernon Person, Thomas C. Adams	2004-09-14
4947993	Container	Norm Bruml	1990-08-14
4798143	Gas dispensing projectile	—	1989-01-17
4407175	Tool for rotating threaded fasteners	—	1983-10-04

Douglas Graham — 4 Patents

Issued Patents All Time

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