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PCE
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DIFF Subgroup
C02F 1/40

Devices for separating or removing fatty or oily substances or similar floating material (cleaning or keeping clear the surface of open water from oil or like materials E02B15/04; devices in sewers for separating liquid or solid substances from sewage E03F5/14, e.g. for use in drains leading to the sewer E03F5/16)

Introduced: January 1980

Title

Titles differ between systems:

IPC: Devices for separating or removing fatty or oily substances or similar floating material

CPC: Devices for separating or removing fatty or oily substances or similar floating material (cleaning or keeping clear the surface of open water from oil or like materials E02B15/04; devices in sewers for separating liquid or solid substances from sewage E03F5/14, e.g. for use in drains leading to the sewer E03F5/16)

Full Title

Full titles differ between systems:

IPC:

Treatment of water, waste water, or sewage > Devices for separating or removing fatty or oily substances or similar floating material

CPC:

Treatment of water, waste water, or sewage (C02F3/00 - C02F9/00 take precedence) > Devices for separating or removing fatty or oily substances or similar floating material (cleaning or keeping clear the surface of open water from oil or like materials E02B15/04; devices in sewers for separating liquid or solid substances from sewage E03F5/14, e.g. for use in drains leading to the sewer E03F5/16)

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

Class C02,2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 3,734
  2. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 2,761
  3. MIDEA 1,938
  4. TONGJI UNIVERSITY 1,433
  5. HARBIN INSTITUTE OF TECHNOLOGY 1,380
  6. HOHAI UNIVERSITY 1,367
  7. BEIJING UNIVERSITY OF TECHNOLOGY 1,317
  8. CHANGZHOU UNIVERSITY 1,248
  9. ZHEJIANG UNIVERSITY 1,229
  10. SOUTH CHINA UNIVERSITY OF TECHNOLOGY 1,203

Top Applicants (CPC)

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