Inventor · disambiguated record
Johannes Didericus De Graaf
Also filed as: DE GRAAF JOHANNES · DE GRAAF JOHANNES D · DE GRAAF JOHANNES DIDERICUS
7 granted patents·1 pending application·41 citations·filing 1979–2002
82Inventor score
Top patents by PatentIndex Score
8 records- 0169US5068254AProcess for the preparation of hydrocarbonsSHELL OIL CO·Filed 1990·Granted Nov 26, 1991·15 cites·5 claims
- 0254US6840199B2Process for heating systemSHELL OIL CO·Filed 2001·Granted Jan 11, 2005·6 cites·19 claims
- 0346US6766772B2Apparatus for heating steamSHELL OIL CO·Filed 2001·Granted Jul 27, 2004·3 cites·16 claims
- 0444US4330374ARecovery of anhydrous hydrogen iodideGEN ATOMIC CO·Filed 1979·Granted May 18, 1982·11 cites·16 claims
- 0541US6886501B2Apparatus and process for heating steamSHELL OIL CO·Filed 2002·Granted May 3, 2005·3 cites·15 claims
- 0641US4376730APreparation of p-aminoazo-benzene from anilineAKZO NV·Filed 1981·Granted Mar 15, 1983·2 cites·2 claims
- 0737US7008460B2Process for the production thermally converted light products and electricitySHELL OIL CO·Filed 2002·Granted Mar 7, 2006·1 cites·25 claims
- 0831US2004220443A1Process for the preparation of hydrocarbonsFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →