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Johan van der Steen

Shell Oil Compny: 5 patents #661 of 4,423Top 15%
Overall (All Time): #1,012,652 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
8390280 Inspection of an electrically conductive object using eddy currents Dave Badoux, Paulus Carolus Nicolaas Crouzen 2013-03-05
6593737 Method for measuring the wall thickness of an electrically conductive object Paulus Carolus Nicolaas Crouzen, Mark Theodoor Looljer 2003-07-15
6570379 Method for inspecting an object of electrically conducting material Paulus Carolus Nicolaas Crouzen, Mark Theodoor Looijer 2003-05-27
6538435 Method for detecting an anomaly in an object of electrically conductive material along first and second direction at inspection points Paulus Carolus Nicolaas Crouzen, Mark Theodoor Looijer 2003-03-25
5902985 Providing service to a vehicle Emko Wilhelm Harmannus Maria Bos, Xavier Frederic Nicolas Marie Deleval, Sicco Dwars 1999-05-11