Organic material

Introduced: January 1990

Full Title

Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor > Organic material

IPC and CPC are identically structured here. All 20 subcodes exist in both systems.

4 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1990.

Child Classifications

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B01D 71/08 Polysaccharides since 1990 IPC+CPC Available in IPC and CPC
B01D 71/24 Rubbers since 1990 IPC+CPC Available in IPC and CPC
B01D 71/26 Polyalkenes since 1990 +2 CPC IPC+CPC Available in IPC and CPC
B01D 71/28 Polymers of vinyl aromatic compounds since 1990 +3 CPC IPC+CPC Available in IPC and CPC
B01D 71/30 Polyalkenyl halides since 1990 +1 CPC IPC+CPC Available in IPC and CPC
B01D 71/38 Polyalkenylalcohols; Polyalkenylesters; Polyalkenylethers; Polyalkenylaldehydes; Polyalkenylketones; Polyalkenylacetals; Polyalkenylketals since 1990 +3 CPC IPC+CPC Available in IPC and CPC
B01D 71/40 Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters since 1990 +4 CPC IPC+CPC Available in IPC and CPC
B01D 71/44 Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D71/26-B01D71/42 since 1990 +1 CPC IPC+CPC Available in IPC and CPC
B01D 71/46 Epoxy resins since 1990 IPC+CPC Available in IPC and CPC
B01D 71/48 Polyesters since 1990 +1 CPC IPC+CPC Available in IPC and CPC
B01D 71/50 Polycarbonates since 1990 IPC+CPC Available in IPC and CPC
B01D 71/52 Polyethers since 1990 +2 CPC IPC+CPC Available in IPC and CPC
B01D 71/54 Polyureas; Polyurethanes since 1990 IPC+CPC Available in IPC and CPC
B01D 71/56 Polyamides, e.g. polyester-amides since 1990 IPC+CPC Available in IPC and CPC
B01D 71/58 Other polymers having nitrogen in the main chain, with or without oxygen or carbon only since 1990 IPC+CPC Available in IPC and CPC
B01D 71/66 Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only since 1990 +1 CPC IPC+CPC Available in IPC and CPC
B01D 71/70 Polymers having silicon in the main chain, with or without sulfur, nitrogen, oxygen or carbon only since 1990 +2 CPC IPC+CPC Available in IPC and CPC
B01D 71/72 Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of the groups B01D71/46 - B01D71/70 since 1990 IPC+CPC Available in IPC and CPC
B01D 71/74 Natural macromolecular material or derivatives thereof (B01D71/08, B01D71/24 take precedence) since 1990 IPC+CPC Available in IPC and CPC
B01D 71/76 Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74 (rubbers in general B01D71/24) since 1990 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B01,2013–2023, worldwide · Source: EPO PATSTAT

SINOPEC (CHINA PETROCHEMICAL CORPORATION) 16,893
CHINESE ACADEMY OF SCIENCES 11,733
BASF (BADISCHE ANILIN & SODA FABRIK) DE 3,898
LG CHEM KR 3,367
PETROCHINA COMPANY 3,224
IFPEN (IFP ENERGIES NOUVELLES) FR 3,042
ZHEJIANG UNIVERSITY 2,890
MANN + HUMMEL DE 2,740
JOHNSON MATTHEY GB 2,534
SAUDI ARABIAN OIL COMPANY SA 2,527

Top Applicants (CPC)

Class B01,2013–2023, worldwide · Source: EPO PATSTAT

SINOPEC (CHINA PETROCHEMICAL CORPORATION) 10,345
CHINESE ACADEMY OF SCIENCES 8,352
BASF (BADISCHE ANILIN & SODA FABRIK) DE 5,134
LG CHEM KR 4,290
SAUDI ARABIAN OIL COMPANY SA 3,444
IFPEN (IFP ENERGIES NOUVELLES) FR 3,417
DOW GLOBAL TECHNOLOGIES US 3,195
MANN + HUMMEL DE 2,822
JOHNSON MATTHEY GB 2,802
UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 2,737