Assignee
MARUBENI TUBULARS INC
US·5 granted patents·407 citations·filing 1992–1998
Top patents by PatentIndex Score
5 records- 0195US5462315AStabilized center-shoulder-sealed tubular connectionMARUBENI TUBULARS INC·Filed 1992·Granted Oct 31, 1995·127 cites·102 claims
- 0293US5415442AStabilized center-shoulder-sealed tubular connectionMARUBENI TUBULARS INC·Filed 1992·Granted May 16, 1995·93 cites·107 claims
- 0387US6322110B1Tubular connectionMARUBENI TUBULARS INC·Filed 1998·Granted Nov 27, 2001·135 cites·51 claims
- 0479US5765836ASealing systemMARUBENI TUBULARS INC·Filed 1997·Granted Jun 16, 1998·39 cites·26 claims
- 0547US6041487AMethod for producing sealing surfaces on a tubular memberMARUBENI TUBULARS INC·Filed 1998·Granted Mar 28, 2000·13 cites·17 claims
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