B01B BOILING; BOILING APPARATUS
Introduced: September 1968
Description
B01B covers apparatus and methods for boiling liquids in industrial, laboratory, and chemical processing contexts. This subclass encompasses boiling vessels, kettles, stills, evaporators, and associated heat transfer equipment designed to facilitate phase change from liquid to vapor. The classification includes systems for controlling boiling conditions, such as heating methods, pressure regulation, and vapor separation, but excludes specialized boiling applications integral to distillation (B01D) or specific chemical synthesis processes classified elsewhere.
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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- B01B 1/00 Boiling; Boiling apparatus for physical or chemical purposes +1 CPC 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