IP Library › Granted Patent US 5,358,285
Granted Patent Utility
US 5,358,285 · App. 08/182,211

Stress relief groove for drill pipe

Inventor: Gerald E. Wilson
Patented Case View Patent ↗
Granted: Oct 25, 1994 Filed: Jan 13, 1994
Inventor
Gerald E. Wilson
Assignee (at issue)
Prideco, Inc.

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Quick Facts
Patent No.
US 5,358,285
App. No.
08/182,211
Filed
1994-01-13
Granted
1994-10-25
Kind
A