CPC Subgroup Additional Only
B01D 2255/207 Transition metals
Full Title
Catalysts > Metals or compounds thereof > Transition metals
12 direct subcodes
Child Classifications
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- B01D 2255/20707 Titanium
- B01D 2255/20715 Zirconium
- B01D 2255/20723 Vanadium
- B01D 2255/2073 Manganese
- B01D 2255/20738 Iron
- B01D 2255/20746 Cobalt
- B01D 2255/20753 Nickel
- B01D 2255/20761 Copper
- B01D 2255/20769 Molybdenum
- B01D 2255/20776 Tungsten
- B01D 2255/20784 Chromium
- B01D 2255/20792 Zinc
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