Inventor · disambiguated record
Johan Stapersma
Also filed as: STAPERSMA JOHAN
10 granted patents·204 citations·filing 1986–2001
89Inventor score
Top patents by PatentIndex Score
10 records- 0193US7141527B1Catalyst system and process for the polymerization of olefinsBASELL POLYOLEFINE GMBH·Filed 2000·Granted Nov 28, 2006·98 cites·23 claims
- 0289US6703457B2Propylene polymers and process for the preparation thereofBASELL POLYOLEFINE GMBH·Filed 2001·Granted Mar 9, 2004·38 cites·20 claims
- 0371US5179225ACarbonylation catalyst systemSHELL OIL CO·Filed 1992·Granted Jan 12, 1993·29 cites·6 claims
- 0470US5166116ACarbonylation catalyst systemSHELL OIL CO·Filed 1991·Granted Nov 24, 1992·27 cites·7 claims
- 0555US4910264AComplex-forming polymers and processes to prepare themSHELL OIL CO·Filed 1989·Granted Mar 20, 1990·3 cites·20 claims
- 0649US4814457AComplex-forming polymers and processes to prepare themSHELL OIL CO·Filed 1986·Granted Mar 21, 1989·2 cites·10 claims
- 0742US5049672AComplex-forming polymers and processes to prepare themSHELL OIL CO·Filed 1989·Granted Sep 17, 1991·1 cites·5 claims
- 0837US4873212ANitrogen-containing bidentate compound immobilized on a solid inorganic carrierSHELL OIL CO·Filed 1988·Granted Oct 10, 1989·4 cites·6 claims
- 0930US4933455ALithiated bipyridyl compoundsSHELL OIL CO·Filed 1989·Granted Jun 12, 1990·1 cites·4 claims
- 1030US4873333ANitrogen-containing bidentate compound immobilized on a solid inorganic carrierSHELL OIL CO·Filed 1989·Granted Oct 10, 1989·1 cites·5 claims
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