William E. Crane — 4 Patents at Witco

William E. Crane has been granted 4 US patents while listed as an inventor at Witco. The first was granted in 1997 and the most recent in September 2002. William E. Crane ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list William E. Crane in Sistersville, WV, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6448361	Continuous manufacture of silicone copolymers	Paul E. Austin, James S. Ritscher, Robert A. Kayser, David D. Farris	2002-09-10	$4,616,000
5986022	Continuous manufacture of silicone coploymers	Paul E. Austin, James S. Ritscher, Robert A. Kayser, David D. Farris	1999-11-16
5869727	Vacuum process for the manufacture of siloxane-oxyalkylene copolymers	Paul E. Austin	1999-02-09
5648444	Hydrosilation in esters without hydroxyl moieties	Paul E. Austin, Kenrick M. Lewis, Rudolph A. Cameron	1997-07-15	$12,836,000

William E. Crane — 4 Patents

Issued Patents All Time

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