CPC Subgroup Additional Only
B01J 2523/37 Lanthanides
Full Title
Constitutive chemical elements of heterogeneous catalysts > of Group III (IIIA or IIIB) of the Periodic Table > Lanthanides
15 direct subcodes
Child Classifications
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- B01J 2523/3706 Lanthanum
- B01J 2523/3712 Cerium
- B01J 2523/3718 Praseodymium
- B01J 2523/3725 Neodymium
- B01J 2523/3731 Promethium
- B01J 2523/3737 Samarium
- B01J 2523/3743 Europium
- B01J 2523/375 Gadolinium
- B01J 2523/3756 Terbium
- B01J 2523/3762 Dysprosium
- B01J 2523/3768 Holmium
- B01J 2523/3775 Erbium
- B01J 2523/3781 Thulium
- B01J 2523/3787 Ytterbium
- B01J 2523/3793 Lutetium
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