William G. Carpenter — 6 Patents at Ashland Oil

William G. Carpenter has been granted 6 US patents while listed as an inventor at Ashland Oil. The first was granted in 1990 and the most recent in October 1995. William G. Carpenter ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list William G. Carpenter in Powell, OH, US.

Patents per Year

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5455287	Foundry mixes containing a polyether polyol and their use	William R. Dunnavant	1995-10-03	$8,868,000
5447968	Polyurethane-forming binder systems containing 2,2'-dipyridyl, 1,10-phenanthroline, and their substituted alkyl derivatives	Kenneth W. Barnett, William R. Dunnavant, Robert B. Fechter	1995-09-05	$9,043,000
5132339	Polyurethane-forming foundry binders containing a polyether polyol	William R. Dunnavant	1992-07-21	$4,331,000
5001190	Process for filling space in a structure with a polyurethane composite in the presence of water	Colleen Marie Henry	1991-03-19	$10,490,000
4982781	No-bake process for preparing foundry shapes for casting low melting metal castings	William R. Dunnavant	1991-01-08	$8,670,000
4946876	Polyurethane-forming foundry binders containing a polyester polyol	William R. Dunnavant	1990-08-07	$9,440,000