Inventor · disambiguated record
Sytze A. Posthuma
Also filed as: POSTHUMA SYTZE A
3 granted patents·43 citations·filing 1990–1995
71Inventor score
Files withSHELL OIL CO3
Top patents by PatentIndex Score
3 records- 0169US5068254AProcess for the preparation of hydrocarbonsSHELL OIL CO·Filed 1990·Granted Nov 26, 1991·15 cites·5 claims
- 0268US5486542AProcess for the distillation of Fisher-Tropsch productsSHELL OIL CO·Filed 1995·Granted Jan 23, 1996·19 cites·9 claims
- 0340US5286455AProcess for the preparation of hydrocarbonsSHELL OIL CO·Filed 1992·Granted Feb 15, 1994·9 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →