Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Main Group Additional Only
C02F 2307/00

Location of water treatment or water treatment device

Filing statistics

CPC C02F 2307/00 belongs to the parent subclass C02F, which recorded 316,465 patent applications worldwide between 2013 and 2023. Annual filings grew from 12,795 in 2013 to 28,600 in 2023 (+124%), peaking at 39,882 applications in 2018. The most active applicants in class C02 are CHINESE ACADEMY OF SCIENCES (2,531 applications), SINOPEC (CHINA PETROCHEMICAL CORPORATION) (1,700 applications) and KURITA WATER IND (1,287 applications).

Source: EPO PATSTAT, worldwide filings

7 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • C02F 2307/02 as part of a bottle
  • C02F 2307/04 as part of a pitcher or jug
  • C02F 2307/06 Mounted on or being part of a faucet, shower handle or showerhead
  • C02F 2307/08 Treatment of wastewater in the sewer, e.g. to reduce grease, odour
  • C02F 2307/10 as part of a potable water dispenser, e.g. for use in homes or offices
  • C02F 2307/12 as part of household appliances such as dishwashers, laundry washing machines or vacuum cleaners
  • C02F 2307/14 Treatment of water in water supply networks, e.g. to prevent bacterial growth

Top Applicants

Top 10 applicants by patent filingsfor class C02, 2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 2,531
  2. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 1,700
  3. KURITA WATER IND JP 1,287
  4. TONGJI UNIVERSITY 1,040
  5. CHANGZHOU UNIVERSITY 928
  6. ECOLAB US 904
  7. HARBIN INSTITUTE OF TECHNOLOGY 904
  8. BEIJING UNIVERSITY OF TECHNOLOGY 878
  9. HOHAI UNIVERSITY 862
  10. EVOQUA WATER TECHNOLOGIES US 842