IP Library › Granted Patent US 6,556,014
Granted Patent Utility PCT National Stage
US 6,556,014 · Confirmation No. 3221

DEVICE AND METHOD FOR MEASUREMENT BY GUIDED WAVES ON A METAL STRING IN A WELL

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2001-03-06 LET. Miscellaneous Incoming Letter 39 View
2001-03-06 LET. Miscellaneous Incoming Letter 39 View
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Quick Facts
Patent No.
US 6,556,014
App. No.
09/719,635
Filed
2001-03-06
Granted
2003-04-29
Art Unit
2862
PTA
0 days