Inventor

LI GUIFENG

US2 patents

Patents

2 patents

US9145530B2Sep 29, 2015

Lubricating oil compositions containing sterically hindered amines as ashless TBN sources

BERA TUSHAR K6 citations61

US9969950B2May 15, 2018

Lubricating oil compositions containing sterically hindered amines as ashless TBN sourcces

BERA TUSHAR K0 citations28