Inventor · disambiguated record
Wiecher Derk Evert Steenge
Also filed as: STEENGE WIECHER D E · STEENGE WIECHER DERK EVERT
4 granted patents·3 pending applications·32 citations·filing 1980–2006
71Inventor score
Files withSHELL OIL CO3DUHOUX ETIENNE1DUININCK JAKOB WILLEM1GERMAINE GILBERT R B1SHELL INT RESEARCH1
Top patents by PatentIndex Score
7 records- 0156US4664889AApparatus for separating hydrocarbon products from catalyst particlesSHELL OIL CO·Filed 1985·Granted May 12, 1987·22 cites·7 claims
- 0239US2009230021A1Process for reducing the cloud point of a base oilDUININCK JAKOB WILLEM·Filed 2006·Application pending·0 cites
- 0337US2007272592A1Process to Prepare a Lubricating Base OilGERMAINE GILBERT R B·Filed 2004·Application pending·0 cites
- 0434US7727379B2Process to continuously prepare two or more base oil grades and middle distillatesSHELL OIL CO·Filed 2005·Granted Jun 1, 2010·0 cites·20 claims
- 0533US2009159492A1Process to prepare a lubricating base oil and its useDUHOUX ETIENNE·Filed 2005·Application pending·0 cites
- 0631US4300801AMethod of solution mining salts from an underground salt depositSHELL INT RESEARCH·Filed 1980·Granted Nov 17, 1981·8 cites·4 claims
- 0726US4809886AApparatus for controlling a flow of granular materialSHELL OIL CO·Filed 1987·Granted Mar 7, 1989·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →