Inventor · disambiguated record
Qifeng Wei
Also filed as: WEI QIFENG
8 granted patents·2 citations·filing 2011–2024
73Inventor score
Top patents by PatentIndex Score
8 records- 0182US11921174B1Method for identifying irreversible demagnetization of grain boundary diffusion NdFeB magnetHANGZHOU MAGMAX TECH CO LTD·Filed 2023·Granted Mar 5, 2024·1 cites·13 claims
- 0277US12092707B2Method for identifying irreversible demagnetization of grain boundary diffusion NdFeB magnetHANGZHOU MAGMAX TECH CO LTD·Filed 2024·Granted Sep 17, 2024·0 cites·5 claims
- 0353US10674993B2Analysis of mitral regurgitation by ultrasonic imagingWEI QIFENG·Filed 2011·Granted Jun 9, 2020·1 cites·17 claims
- 0448US11783972B2Preparation method of neodymium iron boron products and neodymium iron boron product prepared by using the sameHANGZHOU MAGMAX TECH CO LTD·Filed 2021·Granted Oct 10, 2023·0 cites·8 claims
- 0546US10398407B2Wall filter for ultrasonic mitral regurgitation analysisWEI QIFENG·Filed 2011·Granted Sep 3, 2019·0 cites·13 claims
- 0637US10463341B2Analysis of mitral regurgitation from slit orifices by ultrasonic imagingWEI QIFENG·Filed 2011·Granted Nov 5, 2019·0 cites·12 claims
- 0735US10231693B2Automated identification of the location of a regurgitant orifice of a mitral valve in an ultrasound imageWEI QIFENG·Filed 2011·Granted Mar 19, 2019·0 cites·11 claims
- 0834US10512444B2Ultrasonic color flow map for analysis of mitral regurgitationKONINKLIJKE PHILIPS NV·Filed 2013·Granted Dec 24, 2019·0 cites·20 claims
Join the waitlist — get patent alerts
Get an alert when Qifeng Wei files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →