IPC Subclass
B01B BOILING; BOILING APPARATUS
Introduced: September 1968
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- Subclass:
- BOILING; BOILING APPARATUS
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.
1 direct subcode
Child Classifications
Navigate with arrow keys, Enter to open
- B01B 1/00 Boiling; Boiling apparatus for physical or chemical purposes
Top Applicants
Top 10 applicants by patent filingsfor 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