William S. Drummond — 3 Patents at Simco/Ramic

William S. Drummond has been granted 3 US patents while listed as an inventor at Simco/Ramic. All of these patents were granted in 1995. William S. Drummond ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list William S. Drummond in Medford, OR, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5443164	Plastic container sorting system and method	Casey Walsh, Philip L. Hoffman, H. Parks Squyres	1995-08-22
5419438	Apparatus and method for sorting post-consumer articles according to PVC content	H. Parks Squyres	1995-05-30
5402019	Phase startable clock device	Arthur J. Metz, Walter D. Fields	1995-03-28	$4,646,000

William S. Drummond — 3 Patents

Issued Patents All Time

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