Inventor · disambiguated record
Haijun Ren
Also filed as: REN HAIJUN
3 granted patents·3 pending applications·3 citations·filing 2016–2024
53Inventor score
Top patents by PatentIndex Score
6 records- 0182US10408093B2Welded high-pressure fuel pump roller tappetHANGZHOU XZB TECH CO LTD·Filed 2018·Granted Sep 10, 2019·2 cites·6 claims
- 0273US9863382B2High pressure oil pump roller tappetHANGZHOU XZB TECH CO LTD·Filed 2016·Granted Jan 9, 2018·1 cites·9 claims
- 0355US2025231055A1Optimization method based on measurement data of ultrasonic gas meterZENNER METERING TECH SHANGHAI LTD·Filed 2024·Application pending·0 cites
- 0452US2025085146A1Anti-interference structure for ultrasonic gas meterZENNER METERING TECH SHANGHAI LTD·Filed 2023·Application pending·0 cites
- 0551US10287930B2Lightweight rocker arm frame and curved crown part forming process thereofHANGZHOU XZB TECH CO LTD·Filed 2017·Granted May 14, 2019·0 cites·6 claims
- 0647US2025116542A1Ultrasonic gas meter based on shunt metering deviceZENNER METERING TECH SHANGHAI LTD·Filed 2024·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →