CPC Subgroup Additional Only
B01J 2219/00934 Electromagnetic waves
Full Title
Chemical, physical or physico-chemical processes in general; Their relevant apparatus > Aspects relating to microreactors > Irradiation > Electromagnetic waves
6 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- B01J 2219/00936 UV-radiations
- B01J 2219/00939 X-rays
- B01J 2219/00941 Microwaves
- B01J 2219/00943 Visible light, e.g. sunlight
- B01J 2219/00945 Infrared light
- B01J 2219/00948 Radiofrequency
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