Inventor

MA HONGFEI

CN6 patents

⚠️ This page may combine multiple inventors who share the name “MA HONGFEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MA HONGFEI

1 patent

US8161918B2Apr 24, 2012

Water heater

MA HONGFEI14 citations76

NANJING UNIVERSITY OF TECHNOLOGY

1 patent

US11773045B2Oct 3, 2023

Acid-catalyzed photocatalyzed oxidation reaction of benzylic C—H bonds of aromatic compound

NANJING UNIVERSITY OF TECHNOLOGY0 citations55

CHENG YONGHUA

1 patent

US9212817B2Dec 15, 2015

Low NOx burner for a water heater

CHENG YONGHUA2 citations51

QDESIGN U S A INC

1 patent

US7280689B2Oct 9, 2007

Anti-compression techniques for visual images

QDESIGN U S A INC3 citations50

SMITH A O CHINA WATER HEATER

1 patent

US11920923B2Mar 5, 2024

Water heater, and scale detection system and method

SMITH A O CHINA WATER HEATER0 citations48

SMITH CORP A O

1 patent

US9587854B2Mar 7, 2017

Low NOx burner for a water heater

SMITH CORP A O0 citations46