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Color Curly Brackets (indicating CPC extensions to IPC)

CPC
COOPERATIVE PATENT CLASSIFICATION
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WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID (compositions of bituminous materials C08L 95/00; carbon filaments by decomposition of organic filaments D01F 9/14)
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C10C 1/00
Working-up tar
{
petroleum (oil) tar C10C 3/00
}
C10C 1/005
.
{
by mixing two or more coaltar fractions
}
C10C 1/02
.
Removal of water (by distillation C10C 1/06)
{
de-watering of hydrocarbon oils C10G 33/00
}
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C10C 1/04
.
by distillation
C10C 1/06
. .
Removal of water
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C10C 1/08
. .
Winning of aromatic fractions
C10C 1/10
. . .
benzene fraction
{
light fraction
}
C10C 1/12
. . .
naphthalene fraction
{
heavy fraction
}
C10C 1/14
. .
Winning of tar oils from tar
C10C 1/16
. .
Winning of pitch
C10C 1/18
.
by extraction with selective solvents (preparation of hydrocarbon oils from tar oils C10G 21/00)
C10C 1/19
.
by thermal treatment not involving distillation
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C10C 1/20
.
Refining by chemical means
{
inorganic or organic compounds
}
(obtaining hydrocarbon oils C10G)
C10C 1/205
. .
{
refining in the presence of hydrogen
}
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C10C 3/00
Working-up pitch, asphalt, bitumen
{
compositions of asphalts and other bitumenous materials C08L 95/00
}
C10C 3/002
.
{
by thermal means
}
C10C 3/005
.
{
by mixing several fractions (also coaltar fractions with petroleum fractions)
}
C10C 3/007
.
{
winning and separation of asphalt from mixtures with aggregates, fillers and other products, e.g. winning from natural asphalt and regeneration of waste asphalt
}
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C10C 3/02
.
by chemical means
{
reaction
}
C10C 3/023
. .
{
with inorganic compounds
}
C10C 3/026
. .
{
with organic compounds
}
C10C 3/04
. .
by blowing or oxidising
{
e.g. air, ozone
}
C10C 3/06
.
by distillation
C10C 3/08
.
by selective extraction
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C10C 3/10
.
Melting
C10C 3/12
. .
Devices therefor
{
transporting and melting for road construction E01C + s.gr.
}
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C10C 3/14
.
Solidifying, Disintegrating, e.g. granulating
C10C 3/16
. .
by direct contact with liquids
C10C 3/18
.
Removing in solid form from reaction vessels, containers and the like, e.g. by cutting out, by pressing
Production of pyroligneous acid
{
distillation of wood, dry distillation of organic waste
}
(carbonisation of wood C10B)
This page is owned by Office of Patent Classification.
Last Modified: 10/10/2013