Assignee
OSAKA BOSUI KENSETSUSHA KK
JP·5 granted patents·50 citations·filing 1988–1997
Top patents by PatentIndex Score
5 records- 0166US4956041AMethod of lining branch pipe portion of underground main pipe with rigid plastics tubeOSAKA BOSUI KENSETSUSHA KK·Filed 1988·Granted Sep 11, 1990·21 cites·4 claims
- 0243US5108228AMethod of lining branch pipe portion of underground main pipe with rigid plastics tubeOSAKA BOSUI KENSETSUSHA KK·Filed 1990·Granted Apr 28, 1992·10 cites·2 claims
- 0341US6089276AMethod for repairing buried pipe using a metal pipe and method for manufacturing metal pipes that are used in the repairing methodOSAKA BOSUI KENSETSUSHA KK·Filed 1997·Granted Jul 18, 2000·13 cites·7 claims
- 0431US5071616AMethod of inserting rigid plastic lining tube through pipeOSAKA BOSUI KENSETSUSHA KK·Filed 1990·Granted Dec 10, 1991·4 cites·9 claims
- 0526US5293932AApparatus for cutting off projections inside pipesOSAKA BOSUI KENSETSUSHA KK·Filed 1992·Granted Mar 15, 1994·2 cites·2 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →