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Patent applications and USPTO patent grants for Piper; Britton F..The latest application filed is for "modular hot stab with improved connection flange".
Patent | Date |
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Modular hot stab with improved connection flange Grant 8,096,731 - Piper , et al. January 17, 2 | 2012-01-17 |
Modular Hot Stab With Improved Connection Flange App 20100209198 - Piper; Britton F. ;   et al. | 2010-08-19 |
Closure apparatus for blow out prevention Grant 5,273,108 - Piper December 28, 1 | 1993-12-28 |
Flow control valve Grant 5,205,325 - Piper April 27, 1 | 1993-04-27 |
Pressurized check valve Grant 4,811,758 - Piper March 14, 1 | 1989-03-14 |
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