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IPC Subgroup
C05C 7/02

Granulation; Pelletisation; De-gassing; Hydrating; Hardening; Stabilisation; Oiling

Introduced: September 1968

Last revised: January 2006

Full Title

Fertilisers containing calcium or other cyanamides > Granulation; Pelletisation; De-gassing; Hydrating; Hardening; Stabilisation; Oiling

Classification Context

Section:
CHEMISTRY; METALLURGY
Class:
FERTILISERS; MANUFACTURE THEREOF
Subclass:
NITROGENOUS FERTILISERS

Filing statistics

IPC C05C 7/02 belongs to the parent subclass C05C, which recorded 6,180 patent applications worldwide between 2013 and 2023. Annual filings declined from 485 in 2013 to 382 in 2023 (-21%), peaking at 713 applications in 2019. The most active applicants in class C05 are CHINESE ACADEMY OF SCIENCES (895 applications), BASF (BADISCHE ANILIN & SODA FABRIK) (387 applications) and GUIZHOU UNIVERSITY (386 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

GRANULATING cyanamide fertilizers

Top Applicants

Top 10 applicants by patent filingsfor class C05, 2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 895
  2. BASF (BADISCHE ANILIN & SODA FABRIK) DE 387
  3. GUIZHOU UNIVERSITY 386
  4. YARA INTERNATIONAL NO 380
  5. SHENZHEN BATIAN ECOTYPIC ENGINEERING COMPANY 378
  6. SHANDONG SUNWAY LANDSCAPE TECHNOLOGY COMPANY 327
  7. GUILIN JIEYU ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY COMPANY 283
  8. CHINA AGRICULTURAL UNIVERSITY 271
  9. GUANGXI UNIVERSITY 266
  10. NANJING AGRICULTURAL UNIVERSITY 231