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CPC Subgroup
A23K 20/26

Compounds containing phosphorus

Full Title

Accessory food factors for animal feeding-stuffs > Inorganic substances, e.g. oligoelements > Compounds containing phosphorus

Filing statistics

CPC A23K 20/26 belongs to the parent subclass A23K, which recorded 75,244 patent applications worldwide between 2013 and 2023. Annual filings grew from 3,450 in 2013 to 5,806 in 2023 (+68%), peaking at 12,525 applications in 2018. The most active applicants in class A23 are NESTLE (5,075 applications), NESTEC (3,916 applications) and DSM IP ASSETS (DUTCH STATE MINES IP ASSETS) (2,558 applications).

Source: EPO PATSTAT, worldwide filings

Top Applicants

Top 10 applicants by patent filingsfor class A23, 2013–2023, worldwide · Source: EPO PATSTAT

  1. NESTLE CH 5,075
  2. NESTEC CH 3,916
  3. DSM IP ASSETS (DUTCH STATE MINES IP ASSETS) NL 2,558
  4. JIANGNAN UNIVERSITY 2,196
  5. SUNTORY HOLDINGS JP 2,133
  6. CJ CHEILJEDANG CORPORATION KR 1,842
  7. CARGILL US 1,708
  8. REPUBLIC OF KOREA (RURAL DEVELOPMENT ADMINISTRATION) KR 1,341
  9. CHINESE ACADEMY OF SCIENCES 1,279
  10. MARS US 1,161