CPC Subgroup Additional Only
C02F 2305/12 Inert solids used as ballast for improving sedimentation (C02F3/1226 takes precedence)
Full Title
Use of specific compounds during water treatment > Inert solids used as ballast for improving sedimentation (C02F3/1226 takes precedence)
Top Applicants
Top 10 applicants by patent filingsfor class C02, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 2,531
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 1,700
- KURITA WATER IND JP 1,287
- TONGJI UNIVERSITY 1,040
- CHANGZHOU UNIVERSITY 928
- ECOLAB US 904
- HARBIN INSTITUTE OF TECHNOLOGY 904
- BEIJING UNIVERSITY OF TECHNOLOGY 878
- HOHAI UNIVERSITY 862
- EVOQUA WATER TECHNOLOGIES US 842