Processing suspensions

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Apparatus or methods for obtaining or processing clay > for producing or processing clay suspensions > Processing suspensions

CPC:

Apparatus or methods for obtaining or processing clay (filtration in general B01D; separation of solids from solids B03, B07; chemical part C04B; by mining or quarrying E21C41/16, E21C41/26, E21C47/10) > for producing or processing clay suspensions (producing or processing suspensions in general B01) > Processing suspensions

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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B28C 1/08 Separating suspensions, e.g. for obtaining clay, for removing stones; +4 CPC IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B28,2013–2023, worldwide · Source: EPO PATSTAT

MITSUBOSHI DIAMOND INDUSTRIAL COMPANY 868
QINGDAO GAOCE TECHNOLOGY COMPANY 678
DISCO CORPORATION JP 500
ZHOU ZHAODI 500
MITSUBOSHI DIAMOND INDUSTRIAL COMPANY JP 456
HILTI LI 455
CORNING US 407
UNITED STATES GYPSUM COMPANY US 375
ZHENGZHOU YUAN DONG REFRACTORIES COMPANY 370
HUNAN SANY KUAIERJU RESIDENTIAL INDUSTRY COMPANY 351

Top Applicants (CPC)

Class B28,2013–2023, worldwide · Source: EPO PATSTAT

DISCO CORPORATION JP 1,471
HILTI LI 575
CORNING US 544
MITSUBOSHI DIAMOND INDUSTRIAL COMPANY JP 518
UNITED STATES GYPSUM COMPANY US 485
DISCO ABRASIVE SYSTEM 459
GE (GENERAL ELECTRIC COMPANY) US 454
MITSUBOSHI DIAMOND INDUSTRIAL COMPANY 439
DISCO CORPORATION 403
NGK INSULATORS JP 308