B01J 2219/00051 Controlling the temperature
Full Title
Chemical, physical or physico-chemical processes in general; Their relevant apparatus > Controlling or regulating processes > Controlling the temperature
Filing statistics
CPC B01J 2219/00051 belongs to the parent subclass B01J, which recorded 375,224 patent applications worldwide between 2013 and 2023. Annual filings grew from 21,358 in 2013 to 35,413 in 2023 (+66%), peaking at 40,354 applications in 2020. The most active applicants in class B01 are SINOPEC (CHINA PETROCHEMICAL CORPORATION) (10,345 applications), CHINESE ACADEMY OF SCIENCES (8,352 applications) and BASF (BADISCHE ANILIN & SODA FABRIK) (5,134 applications).
Source: EPO PATSTAT, worldwide filings
8 direct subcodes
Child Classifications
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- B01J 2219/00054 Controlling or regulating the heat exchange system
- B01J 2219/00074 by indirect heating or cooling employing heat exchange fluids
- B01J 2219/00121 by direct heating or cooling
- B01J 2219/00132 using electric heating or cooling elements
- B01J 2219/00139 using electromagnetic heating
- B01J 2219/0015 by thermal insulation means
- B01J 2219/00157 by means of a burner
- B01J 2219/00159 controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling
Top Applicants
Top 10 applicants by patent filingsfor 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