D. D. Orrell — 1 Patent at Conoco

D. D. Orrell has been granted 1 US patent while listed as an inventor at Conoco. All of these patents were granted in 1984. D. D. Orrell ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list D. D. Orrell in Ponca City, OK, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4473465	Eliminating foaming in hydrocarbon distillations	Fred C. Veatch	1984-09-25

D. D. Orrell — 1 Patent

Issued Patents All Time

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