CPC Subgroup
C10M 133/38 Heterocyclic nitrogen compounds
Full Title
Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen > having a carbon chain of less than 30 atoms > Heterocyclic nitrogen compounds
3 direct subcodes
Child Classifications
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- C10M 133/40 Six-membered ring containing nitrogen and carbon only
- C10M 133/44 Five-membered ring containing nitrogen and carbon only
- C10M 133/48 the ring containing both nitrogen and oxygen
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