William E. Carnahan — 2 Patents at Weirton Steeel

William E. Carnahan has been granted 2 US patents while listed as an inventor at Weirton Steeel. The first was granted in 1996 and the most recent in August 1997. William E. Carnahan ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list William E. Carnahan in Toronto, OH, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5657603	Preparing sheet metal and fabricating roofing shingles	Robert R. Goodhart, Jane M. Brown	1997-08-19	$2,579,000
5495654	Preparing sheet metal and fabricating roofing shingles	Robert R. Goodhart, Jane M. Brown	1996-03-05	$2,088,000

William E. Carnahan — 2 Patents

Issued Patents All Time

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