Warren E. Holland — 2 Patents at ExxonMobil

Warren E. Holland has been granted 2 US patents while listed as an inventor at ExxonMobil. The first was granted in 1980 and the most recent in November 1982. Warren E. Holland ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Warren E. Holland in Houston, TX, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4360064	Circulating valve for wells	John A. O'Connor, James D. Burley, Ronald D. Rogers, Fred E. Watkins, Ben D. Terral	1982-11-23	$13,049,000
4204690	Sealing retaining ring assembly	James D. Burley, Henry P. Arendt	1980-05-27	$26,644,000

Warren E. Holland — 2 Patents

Issued Patents All Time

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