Assignee
QUALITY TUBING INC
US·8 granted patents·568 citations·filing 1985–1996
Top patents by PatentIndex Score
8 records- 0192US5526881APreperforated coiled tubingQUALITY TUBING INC·Filed 1994·Granted Jun 18, 1996·97 cites·11 claims
- 0292US4629218AOilfield coil tubingQUALITY TUBING INC·Filed 1985·Granted Dec 16, 1986·177 cites·34 claims
- 0383US5191911AContinuous length of coilable tubingQUALITY TUBING INC·Filed 1992·Granted Mar 9, 1993·60 cites·15 claims
- 0482US4863091AMethod and apparatus for producing continuous lengths of coilable tubingQUALITY TUBING INC·Filed 1987·Granted Sep 5, 1989·50 cites·18 claims
- 0578US5662145ADual bias weld for continuous coiled tubingQUALITY TUBING INC·Filed 1995·Granted Sep 2, 1997·49 cites·20 claims
- 0677US5622211APreperforated coiled tubingQUALITY TUBING INC·Filed 1995·Granted Apr 22, 1997·74 cites·6 claims
- 0777US5456405ADual bias weld for continuous coiled tubingQUALITY TUBING INC·Filed 1993·Granted Oct 10, 1995·40 cites·9 claims
- 0841US5785500AWell pump having a plunger in contact with well and pump fluidQUALITY TUBING INC·Filed 1996·Granted Jul 28, 1998·21 cites·14 claims
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