Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subgroup
C10N 30/12

Inhibition of corrosion, e.g. anti-rust agents, anti-corrosives

Introduced: January 1985

Last revised: January 2006

Full Title

Specified physical or chemical property which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives > Inhibition of corrosion, e.g. anti-rust agents, anti-corrosives

Classification Context

Section:
CHEMISTRY; METALLURGY
Class:
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
Subclass:
INDEXING SCHEME ASSOCIATED WITH SUBCLASS

Top Applicants

Top 10 applicants by patent filingsfor class C10, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 8,875
  2. SAUDI ARABIAN OIL COMPANY SA 2,245
  3. PETROCHINA COMPANY 2,028
  4. EXXONMOBIL RESEARCH AND ENGINEERING COMPANY US 1,980
  5. IFPEN (IFP ENERGIES NOUVELLES) FR 1,963
  6. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NL 1,878
  7. CHINESE ACADEMY OF SCIENCES 1,829
  8. UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 1,787
  9. LUBRIZOL CORPORATION US 1,277
  10. BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,268