Inventor · disambiguated record
Hongfei Ma
Also filed as: MA HONGFEI
5 granted patents·16 citations·filing 2008–2022
70Inventor score
Files withCHENG YONGHUA1MA HONGFEI1NANJING UNIVERSITY OF TECHNOLOGY1SMITH A O CHINA WATER HEATER1SMITH CORP A O1
Top patents by PatentIndex Score
5 records- 0177US8161918B2Water heaterMA HONGFEI·Filed 2008·Granted Apr 24, 2012·14 cites·21 claims
- 0265US11773045B2Acid-catalyzed photocatalyzed oxidation reaction of benzylic C—H bonds of aromatic compoundNANJING UNIVERSITY OF TECHNOLOGY·Filed 2022·Granted Oct 3, 2023·0 cites·20 claims
- 0363US9212817B2Low NOx burner for a water heaterCHENG YONGHUA·Filed 2010·Granted Dec 15, 2015·2 cites·4 claims
- 0456US9587854B2Low NOx burner for a water heaterSMITH CORP A O·Filed 2015·Granted Mar 7, 2017·0 cites·9 claims
- 0555US11920923B2Water heater, and scale detection system and methodSMITH A O CHINA WATER HEATER·Filed 2021·Granted Mar 5, 2024·0 cites·18 claims
Join the waitlist — get patent alerts
Get an alert when Hongfei Ma 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 →