Assignee
HYDRIL COMPANY L P
US·6 granted patents·144 citations·filing 2000–2004
Top patents by PatentIndex Score
6 records- 0189US6782932B1Apparatus and method for making wound-fiber reinforced articlesHYDRIL COMPANY L P·Filed 2000·Granted Aug 31, 2004·36 cites·15 claims
- 0275US7191841B2Expansion pigHYDRIL COMPANY L P·Filed 2004·Granted Mar 20, 2007·36 cites·34 claims
- 0375US7137453B2Remote operated actuator system for drill string internal blowout preventerHYDRIL COMPANY L P·Filed 2004·Granted Nov 21, 2006·14 cites·9 claims
- 0465US6676169B1Connection for composite tubingHYDRIL COMPANY L P·Filed 2000·Granted Jan 13, 2004·11 cites·10 claims
- 0561US7011159B2Compact mid-grip fastenerHYDRIL COMPANY L P·Filed 2003·Granted Mar 14, 2006·23 cites·30 claims
- 0660US6845959B2Quick release blowout preventer bonnetHYDRIL COMPANY L P·Filed 2003·Granted Jan 25, 2005·24 cites·3 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →