Inventor · disambiguated record
Songnian Li
Also filed as: LI SONGNIAN
7 granted patents·1 pending application·165 citations·filing 1999–2004
86Inventor score
Files withDELPHI TECH INC4CHINA PETROLAM AND CHEMICAL CO1RES INST OF PETROLEUM1RES INST PETROLEUM PROCESSING1
Top patents by PatentIndex Score
8 records- 0191US6753780B2Vehicle occupant detection system and method using radar motion sensorDELPHI TECH INC·Filed 2002·Granted Jun 22, 2004·77 cites·28 claims
- 0278US7038594B2Led driver current amplifierDELPHI TECH INC·Filed 2004·Granted May 2, 2006·25 cites·13 claims
- 0361US7153478B2Downflow catalytic cracking reactor and its applicationRES INST PETROLEUM PROCESSING·Filed 2003·Granted Dec 26, 2006·9 cites·19 claims
- 0457US6723292B2Stripper and a stripping process for removing the flue gas carried by regenerated catalystCHINA PETROLAM AND CHEMICAL CO·Filed 2001·Granted Apr 20, 2004·5 cites·8 claims
- 0550US6243323B1System and method for eliminating audible noise for ultrasonic transducerDELPHI TECH INC·Filed 1999·Granted Jun 5, 2001·29 cites·13 claims
- 0642US6202034B1Ultrasonic ranging system and method for improving accuracy thereofDELPHI TECH INC·Filed 1999·Granted Mar 13, 2001·20 cites·13 claims
- 0742US2005073586A1Digital camera interfaceFiled 2003·Application pending·0 cites
- 0837US6939823B2Stripper and a stripping process for removing the flue gas carried by regenerated catalystRES INST OF PETROLEUM·Filed 2004·Granted Sep 6, 2005·0 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Songnian Li 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 →