Jan Douma

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Timed shooting with a dynamic delay
- Patent number 6,483,774
- Issue date Nov 19, 2002
- WesternGeco, LLC
- Jan Douma
- G01 - MEASURING TESTING
Information Patent Grant
Seismic receiver motion compensation
- Patent number 6,480,440
- Issue date Nov 12, 2002
- WesternGeco, LLC
- Jan Douma
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
TIMED SHOOTING WITH A DYNAMIC DELAY
- Publication number 20020132594
- Publication date Sep 19, 2002
- Jan Douma
- G01 - MEASURING TESTING
Information Patent Application
SEISMIC RECEIVER MOTION COMPENSATION
- Publication number 20020126576
- Publication date Sep 12, 2002
- WesternGeco L.L.C.
- Jan Douma
- G01 - MEASURING TESTING