Assignee
NINGBO WANAN CO LTD
CN·5 granted patents·1 pending application·80 citations·filing 2006–2023
Top patents by PatentIndex Score
6 records- 0197US7458386B2Manual gas valve with natural/LP gas conversion capabilityNINGBO WANAN CO LTD·Filed 2006·Granted Dec 2, 2008·71 cites·8 claims
- 0289US11385661B1Gas pressure regulating deviceNINGBO WANAN CO LTD·Filed 2021·Granted Jul 12, 2022·9 cites·11 claims
- 0366US12455581B2Gas negative pressure valveNINGBO WANAN CO LTD·Filed 2023·Granted Oct 28, 2025·0 cites·11 claims
- 0448US2024344629A1Timed gas cut-off device and gas equipmentNINGBO WANAN CO LTD·Filed 2023·Application pending·0 cites
- 0544US11415236B1Gas pressure regulating deviceNINGBO WANAN CO LTD·Filed 2021·Granted Aug 16, 2022·0 cites·9 claims
- 0639US11668406B2Gas pressure regulatorNINGBO WANAN CO LTD·Filed 2020·Granted Jun 6, 2023·0 cites·8 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →