Assignee
PRODUCTION SPECIALTIES INC
6 granted patents·77 citations·filing 1976–1976
Technology mixE21B6
Top patents by PatentIndex Score
6 records- 0154US4033409AWell tubing mandrel with orienting sleeve with trash relieving slotPRODUCTION SPECIALTIES INC·Filed 1976·Granted Jul 5, 1977·22 cites·2 claims
- 0246US4031954AFlow valve installation and removal apparatusPRODUCTION SPECIALTIES INC·Filed 1976·Granted Jun 28, 1977·19 cites·5 claims
- 0342US4051895APositioning toolPRODUCTION SPECIALTIES INC·Filed 1976·Granted Oct 4, 1977·15 cites·5 claims
- 0434US4034806ATubing side pocket mandrelPRODUCTION SPECIALTIES INC·Filed 1976·Granted Jul 12, 1977·9 cites·2 claims
- 0533US4030543AWell tubing mandrel with combination guard, guide and latch arrangementPRODUCTION SPECIALTIES INC·Filed 1976·Granted Jun 21, 1977·8 cites·2 claims
- 0624US4040481AArrangement for positioning a member in a receiving section of a side pocket mandrelPRODUCTION SPECIALTIES INC·Filed 1976·Granted Aug 9, 1977·4 cites·5 claims
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