C10L FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
Introduced: September 1968
Description
C10L covers fuels not classified in other C10 subclasses, including natural gas, liquefied petroleum gas (LPG), and synthetic natural gas produced by processes outside the scope of dedicated subclasses. This subclass also encompasses fuel additives and their applications to improve combustion properties, performance, or safety characteristics in fuels and fires. Fire-lighter compositions and devices designed to initiate ignition are included within this classification. Adjacent subclasses C10B through C10K address specific fuel production processes (e.g., coal carbonization, oil refining, gasification), whereas C10L captures residual fuel types and supplementary technologies that enhance fuel functionality.
Title
Titles differ between systems:
IPC: FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES OR; LIQUEFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
CPC: FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
Full Title
Full titles differ between systems:
FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES OR; LIQUEFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
Additional Content IPC
fire-lighter fire-lighters easily-combustible composition or shaped product which is designed to initiate the combustion of a larger body of fuel, e.g. briquettes mainly consisting of charcoal
Of 14 combined children, 8 exist in both systems.
6 codes are CPC-only extensions.
Note: 6 CPC extensions are marked as secondary classification only.
3 shared codes have differing titles between IPC and CPC.
Child Classifications
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- C10L 10/00 Use of additives to fuels or fires for particular purposes (additives for liquid carbonaceous fuels characterised by their chemical nature C10L1/10; using binders for briquetting solid fuels C10L5/10; using additives to improve the combustion of solid fuels C10L9/10) IPC+CPC Available in IPC and CPC
- C10L 2230/00 Function and purpose of a components of a fuel or the composition as a whole 2nd only +11 CPC CPC only CPC only
- C10L 2250/00 Structural features of fuel components or fuel compositions, either in solid, liquid or gaseous state 2nd only +4 CPC CPC only CPC only
- C10L 2290/00 Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units 2nd only +29 CPC CPC only CPC only
- C10L 2300/00 Mixture of two or more additives covered by the same group of C10L1/00 - C10L1/308 2nd only +3 CPC CPC only CPC only
- C10L 3/00 Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas +1 CPC IPC+CPC Available in IPC and CPC
- C10L 5/00 Solid fuels (produced by solidifying fluid fuels C10L7/00; peat briquettes C10F7/06) IPC+CPC Available in IPC and CPC
- C10L 8/00 Fuels not provided for in other groups of this subclass since 2006 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class C10,2013–2023, worldwide · Source: EPO PATSTAT
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 8,875
- SAUDI ARABIAN OIL COMPANY SA 2,245
- PETROCHINA COMPANY 2,028
- EXXONMOBIL RESEARCH AND ENGINEERING COMPANY US 1,980
- IFPEN (IFP ENERGIES NOUVELLES) FR 1,963
- SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NL 1,878
- CHINESE ACADEMY OF SCIENCES 1,829
- UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 1,787
- LUBRIZOL CORPORATION US 1,277
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,268
Top Applicants (CPC)
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