Francis E. Debons — 9 Patents at Chevron

Francis E. Debons has been granted 9 US patents while listed as an inventor at Chevron. The first was granted in 1985 and the most recent in May 1992. Francis E. Debons ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Francis E. Debons in Richmond, TX, US.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5114599	Use of lignin/amine/surfactant blends in enhanced oil recovery	Larry D. Pedersen, Lawrence E. Whittington	1992-05-19	$37,240,000
4821803	High salinity polymer drive for surfactant flooding systems	—	1989-04-18	$23,947,000
4822501	Use of lignin/amine/surfactant blends in enhanced oil recovery	Larry D. Pedersen, Lawrence E. Whittington	1989-04-18
4787454	Recovering hydrocarbons with surfactants from lignin	Douglas G. Naae, Lawrence E. Whittington, Will A. Ledoux	1988-11-29	$26,969,000
4781251	Recovering hydrocarbons with water soluble alkylphenol lignin surfactants	Douglas G. Naae	1988-11-01	$47,653,000
4756370	Lignin amine surfactant system followed by sequential polymer slugs	—	1988-07-12	$50,995,000
4739040	Surfactants from lignin	Douglas G. Naae, Lawrence E. Whittington, Will A. Ledoux	1988-04-19	$54,800,000
4611659	Oxidized alkali lignins and their use in enhanced oil recovery	Larry D. Pedersen, David K. Olsen, William C. Richardson	1986-09-16
4548721	Method of enhanced oil recovery and compositions useful therein	Lawrence E. Whittington, Larry D. Pedersen	1985-10-22

Francis E. Debons — 9 Patents

Issued Patents All Time

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