Inventor

ZENG HAORAN

CN4 patents

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

PHI HONG ELECTRONICS SHANGHAI

2 patents

US6933684B2Aug 23, 2005

Electronic ballast using cut and save technology

PHI HONG ELECTRONICS SHANGHAI8 citations59

US6828732B2Dec 7, 2004

Fluorescent lamp end-of-life protection circuit

PHI HONG ELECTRONICS SHANGHAI3 citations57

DONGYANG TOSPO LIGHTING CO LTD

1 patent

US7564195B2Jul 21, 2009

Circuit of the electronic ballast with the capability of automatic restart

DONGYANG TOSPO LIGHTING CO LTD2 citations51

HENGDIAN TOSPO ELECTRONICS CO

1 patent

US7336040B2Feb 26, 2008

Single-channel comprehensive protection circuit

HENGDIAN TOSPO ELECTRONICS CO4 citations51