Inventor · disambiguated record

Gerhardus C. Van Der Graaf

Also filed as: VAN DER GRAAF GERHARDUS C

2 granted patents·72 citations·filing 1980–1982

66Inventor score

Technology areasE21B F16L

Files withSHELL OIL CO2

Top patents by PatentIndex Score

2 records

0172US4363567AMultiple bore marine riser with flexible reinforcementSHELL OIL CO·Filed 1980·Granted Dec 14, 1982·50 cites·9 claims
0250US4459066AFlexible line system for a floating bodySHELL OIL CO·Filed 1982·Granted Jul 10, 1984·22 cites·8 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →