Inventor

CHENG YONGHUA

CA4 patents

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

SMITH CORP A O

2 patents

US11761677B2Sep 19, 2023

Water heater having highly efficient and compact heat exchanger

SMITH CORP A O0 citations47

US9587854B2Mar 7, 2017

Low NOx burner for a water heater

SMITH CORP A O0 citations46

ABDEL-REHIM AYMAN

1 patent

US8763564B2Jul 1, 2014

Water heater and method of operating

ABDEL-REHIM AYMAN7 citations72

CHENG YONGHUA

1 patent

US9212817B2Dec 15, 2015

Low NOx burner for a water heater

CHENG YONGHUA2 citations51