DIFF Subgroup
B05C 3/12 for treating work of indefinite length
Introduced: September 1968
Full Title
Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material > the work being immersed in the liquid or other fluent material > for treating work of indefinite length
Of 3 combined children, 2 exist in both systems.
1 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- B05C 3/15 not supported on conveying means (; web or filament feeding arrangements B65H) IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class B05,2013–2023, worldwide · Source: EPO PATSTAT
- DUERR SYSTEMS DE 1,073
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 941
- TOKYO ELECTRON JP 825
- YOSHINO KOGYOSHO COMPANY 780
- APTAR FRANCE FR 723
- NORDSON CORPORATION US 704
- LG ENERGY SOLUTION KR 606
- GRACO MINNESOTA US 604
- SCREEN HOLDINGS JP 592
- BOEING COMPANY US 516
Top Applicants (CPC)
Class B05,2013–2023, worldwide · Source: EPO PATSTAT
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 1,265
- DUERR SYSTEMS DE 1,191
- TOKYO ELECTRON JP 1,157
- BASF COATINGS (BADISCHE ANILIN & SODA FABRIK COATINGS) DE 972
- APTAR FRANCE FR 848
- PPG INDUSTRIES OHIO US 838
- P&G (PROCTER & GAMBLE COMPANY) US 763
- NORDSON CORPORATION US 761
- LG CHEM KR 695
- GRACO MINNESOTA US 691