Inventor · disambiguated record

Astrid Hartwijk

Also filed as: HARTWIJK ASTRID

1 granted patent·149 citations·filing 2002–2002

55Inventor score

Technology areasE21B

Files withSHELL OIL CO1

Top patents by PatentIndex Score

1 record

0189US6679324B2Downhole device for controlling fluid flow in a wellSHELL OIL CO·Filed 2002·Granted Jan 20, 2004·149 cites·18 claims

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