Inventor · disambiguated record
Eric J. Clayfield
Also filed as: CLAYFIELD ERIC J
4 granted patents·64 citations·filing 1976–1986
78Inventor score
Files withSHELL OIL CO4
Top patents by PatentIndex Score
4 records- 0167US4153419AAgglomeration of coal finesSHELL OIL CO·Filed 1977·Granted May 8, 1979·20 cites·22 claims
- 0260US4524000AProcess for the removal of oil from an oil-in-water dispersionSHELL OIL CO·Filed 1984·Granted Jun 18, 1985·21 cites·9 claims
- 0356US4090853AColloil product and methodSHELL OIL CO·Filed 1976·Granted May 23, 1978·16 cites·5 claims
- 0437US4734206AMethod for separating coal particles from an aqueous slurrySHELL OIL CO·Filed 1986·Granted Mar 29, 1988·7 cites·18 claims
Join the waitlist — get patent alerts
Get an alert when Eric J. Clayfield files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →