Assignee
Shanghai qinghe machinery co ltd
CN·1 granted patent·1 pending application·0 citations·filing 2018–2019
Top patents by PatentIndex Score
2 records- 0142US2020331088A1Repairing methods for hydraulic-end valve cage cavity and plunger-end seal holeShanghai qinghe machinery co ltd·Filed 2018·Application pending·0 cites
- 0239US11306368B2High pressure and corrosion resistant steel and preparation method and application thereofShanghai qinghe machinery co ltd·Filed 2019·Granted Apr 19, 2022·0 cites·16 claims
Join the waitlist — get patent alerts
Get an alert when Shanghai qinghe machinery co ltd 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 →