John L. Warthen — 1 Patent at W.R. Grace & Co.-Conn.

John L. Warthen has been granted 1 US patent while listed as an inventor at W.R. Grace & Co.-Conn.. All of these patents were granted in 1998. John L. Warthen ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list John L. Warthen in Baltimore, MD, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5714424	Multi-component polyolefin catalysts	Rimantas Glemza	1998-02-03	$28,041,000