CPC Subgroup
C10M 135/16 thiourea type, i.e. containing the group [IMAGE cpc-sch-C10M-1026.gif]
Full Title
Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium > Thio-acids; Thiocyanates; Derivatives thereof > having a carbon-to-sulfur double bond > thiourea type, i.e. containing the group [IMAGE cpc-sch-C10M-1026.gif]
Top Applicants
Top 10 applicants by patent filingsfor class C10, 2013–2023, worldwide · Source: EPO PATSTAT
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 5,831
- SAUDI ARABIAN OIL COMPANY SA 2,918
- IFPEN (IFP ENERGIES NOUVELLES) FR 2,305
- EXXONMOBIL RESEARCH AND ENGINEERING COMPANY US 2,282
- UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 2,268
- SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NL 2,124
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,487
- CHEVRON CORPORATION US 1,400
- PETROCHINA COMPANY 1,372
- LUBRIZOL CORPORATION US 1,324