Assignee
OVG VACUUM TECH SHANGHAI CO LTD
CN·4 granted patents·1 pending application·0 citations·filing 2019–2020
Top patents by PatentIndex Score
5 records- 0154US11608829B2Structure of rotor connection of multi-axial multi-stage roots pumpOVG VACUUM TECH SHANGHAI CO LTD·Filed 2020·Granted Mar 21, 2023·0 cites·9 claims
- 0250US11320036B2Transmission structure of motor connection of roots pumpOVG VACUUM TECH SHANGHAI CO LTD·Filed 2020·Granted May 3, 2022·0 cites·7 claims
- 0347US11339783B2Pump housing structure of three-axis multi-stage Roots pumpOVG VACUUM TECH SHANGHAI CO LTD·Filed 2019·Granted May 24, 2022·0 cites·9 claims
- 0445US11441564B2Driving structure of three-axis multi-stage roots pumpOVG VACUUM TECH SHANGHAI CO LTD·Filed 2019·Granted Sep 13, 2022·0 cites·10 claims
- 0534US2021108639A1Roots rotor for removing dust coagulum and dropletsOVG VACUUM TECH SHANGHAI CO LTD·Filed 2020·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when OVG VACUUM TECH SHANGHAI 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 →