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:

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

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 1/00 Liquid carbonaceous fuels +2 CPC IPC+CPC Available in IPC and CPC
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 11/00 Fire-lighters IPC+CPC Available in IPC and CPC
C10L 2200/00 Components of fuel compositions 2nd only +2 CPC CPC only CPC only
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 2270/00 Specifically adapted fuels 2nd only +5 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 7/00 Fuels produced by solidifying fluid fuels 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
C10L 9/00 Treating solid fuels to improve their combustion IPC+CPC Available in IPC and CPC