P

Inventor

LI SONGNIAN

US7 patents
⚠️ This page may combine multiple inventors who share the name “LI SONGNIAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DELPHI TECH INC

4 patents
US6753780B2Jun 22, 2004

Vehicle occupant detection system and method using radar motion sensor

DELPHI TECH INC77 citations95
US6243323B1Jun 5, 2001

System and method for eliminating audible noise for ultrasonic transducer

DELPHI TECH INC29 citations90
US6202034B1Mar 13, 2001

Ultrasonic ranging system and method for improving accuracy thereof

DELPHI TECH INC20 citations90
US7038594B2May 2, 2006

Led driver current amplifier

DELPHI TECH INC25 citations89

RES INST PETROLEUM PROCESSING

1 patent
US7153478B2Dec 26, 2006

Downflow catalytic cracking reactor and its application

RES INST PETROLEUM PROCESSING9 citations71

CHINA PETROLAM AND CHEMICAL CO

1 patent
US6723292B2Apr 20, 2004

Stripper and a stripping process for removing the flue gas carried by regenerated catalyst

CHINA PETROLAM AND CHEMICAL CO5 citations56

RES INST OF PETROLEUM

1 patent
US6939823B2Sep 6, 2005

Stripper and a stripping process for removing the flue gas carried by regenerated catalyst

RES INST OF PETROLEUM0 citations43