Assignee
SAGAWA SHIZUO
JP·5 granted patents·50 citations·filing 1988–1992
Top patents by PatentIndex Score
5 records- 0166US5326400APlug member for use in coating an interior surface of a pipeSAGAWA SHIZUO·Filed 1992·Granted Jul 5, 1994·26 cites·3 claims
- 0245US4895602APipe cleaning methodSAGAWA SHIZUO·Filed 1988·Granted Jan 23, 1990·11 cites·2 claims
- 0341US4876761APin for sweepersSAGAWA SHIZUO·Filed 1988·Granted Oct 31, 1989·9 cites·7 claims
- 0426US5157803ASweeperSAGAWA SHIZUO·Filed 1990·Granted Oct 27, 1992·3 cites·2 claims
- 0525US5253385APipeline pig sweeper and sweeper pinSAGAWA SHIZUO·Filed 1992·Granted Oct 19, 1993·1 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when SAGAWA SHIZUO files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →