IP Library › Granted Patent US 5,333,832
Granted Patent Utility
US 5,333,832 · App. 08/131,132

Blowout preventer with removable packer

Inventors: Leroy E. Bartholomew, Eric G. Childs, David Callahan
Patented Case View Patent ↗
Granted: Aug 2, 1994 Filed: Oct 4, 1993
Inventors
Leroy E. Bartholomew
Eric G. Childs
David Callahan

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Quick Facts
Patent No.
US 5,333,832
App. No.
08/131,132
Filed
1993-10-04
Granted
1994-08-02
Kind
A