Inventor · disambiguated record
Mark A. Berggren
Also filed as: BERGGREN MARK A
4 granted patents·98 citations·filing 1989–1994
79Inventor score
Files withSHELL OIL CO4
Top patents by PatentIndex Score
4 records- 0181US5420203AProcess for producing high diblock content block copolymer compositionsSHELL OIL CO·Filed 1994·Granted May 30, 1995·36 cites·9 claims
- 0273US5036119AProcess for preparing bituminous compositionSHELL OIL CO·Filed 1989·Granted Jul 30, 1991·27 cites·20 claims
- 0370USH1250HModification of asphaltSHELL OIL CO·Filed 1992·Granted Nov 2, 1993·24 cites·3 claims
- 0446US5308676ATorchable roll roofing membraneSHELL OIL CO·Filed 1991·Granted May 3, 1994·11 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →