DIFF Subgroup
B03C 3/01 Pretreatment of the gases prior to electrostatic precipitation
Introduced: September 1968
Full Title
Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect > Pretreatment of the gases prior to electrostatic precipitation
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1995.
Child Classifications
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- B03C 3/013 Conditioning by chemical additives, e.g. with SO3 since 1995 IPC+CPC Available in IPC and CPC
- B03C 3/014 Addition of water; Heat exchange, e.g. by condensation since 1995 IPC+CPC Available in IPC and CPC
- B03C 3/016 by acoustic or electromagnetic energy, e.g. ultraviolet light since 1995 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class B03,2013–2023, worldwide · Source: EPO PATSTAT
- CHINA UNIVERSITY OF MINING AND TECHNOLOGY 535
- CENTRAL SOUTH UNIVERSITY 526
- KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 510
- OUTOTEC (FINLAND) FI 255
- GREE ELECTRIC APPLIANCES 231
- LG ELECTRONICS KR 214
- JIANGXI UNIVERSITY OF SCIENCE AND TECHNOLOGY 214
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 213
- SHANGHAI BIXIUFU ENTERPRISE MANAGEMENT COMPANY CN 208
- NORTHEASTERN UNIVERSITY 196
Top Applicants (CPC)
Class B03,2013–2023, worldwide · Source: EPO PATSTAT
- CENTRAL SOUTH UNIVERSITY 405
- CHINA UNIVERSITY OF MINING AND TECHNOLOGY 310
- KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 303
- SHANGHAI BIXIUFU ENTERPRISE MANAGEMENT COMPANY CN 296
- OUTOTEC (FINLAND) FI 252
- LG ELECTRONICS KR 234
- CIDRA CORPORATE SERVICES US 232
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 218
- ADEY HOLDINGS (2008) GB 169
- FLSMIDTH DK 166