Sulfates of ammonium (C01C1/14 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Sulfates of ammonium

CPC: Sulfates of ammonium (C01C1/14 takes precedence)

Full titles differ between systems:

IPC:

Ammonia; Compounds thereof > Sulfates of ammonium

CPC:

Ammonia; Compounds thereof > Sulfates of ammonium (C01C1/14 takes precedence)

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1974.

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C01C 1/242 Preparation from ammonia and sulfuric acid or sulfur trioxide since 1974 IPC+CPC Available in IPC and CPC
C01C 1/244 Preparation by double decomposition of ammonium salts with sulfates since 1974 IPC+CPC Available in IPC and CPC
C01C 1/245 Preparation from compounds containing nitrogen and sulfur since 1974 IPC+CPC Available in IPC and CPC
C01C 1/248 Preventing coalescing or controlling form or size of the crystals since 1974 IPC+CPC Available in IPC and CPC
C01C 1/249 Deacidifying the crystals since 1974 IPC+CPC Available in IPC and CPC

Class C01,2013–2023, worldwide · Source: EPO PATSTAT

Class C01,2013–2023, worldwide · Source: EPO PATSTAT

CHINESE ACADEMY OF SCIENCES 4,293
LG CHEM KR 3,317
BASF (BADISCHE ANILIN & SODA FABRIK) DE 2,219
SINOPEC (CHINA PETROCHEMICAL CORPORATION) 2,154
OMYA INTERNATIONAL CH 1,524
PANASONIC INTELLECTUAL PROPERTY JP 1,362
SAUDI ARABIAN OIL COMPANY SA 1,298
SUMITOMO METAL MINING COMPANY JP 1,286
CENTRAL SOUTH UNIVERSITY 1,243
L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE FR 1,238