Inventor · disambiguated record
Guifeng Li
Also filed as: LI GUIFENG
2 granted patents·6 citations·filing 2012–2012
44Inventor score
Files withBERA TUSHAR K2
Top patents by PatentIndex Score
2 records- 0179US9145530B2Lubricating oil compositions containing sterically hindered amines as ashless TBN sourcesBERA TUSHAR K·Filed 2012·Granted Sep 29, 2015·6 cites·16 claims
- 0240US9969950B2Lubricating oil compositions containing sterically hindered amines as ashless TBN sourccesBERA TUSHAR K·Filed 2012·Granted May 15, 2018·0 cites·7 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →