from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium products

Introduced: September 1968

Title

Titles differ between systems:

IPC: from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium compounds

CPC: from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium products

Full Title

Full titles differ between systems:

IPC:

Calcareous fertilisers > from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium compounds

CPC:

Calcareous fertilisers (C05D7/00 takes precedence) > from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium products

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

Top Applicants

Top Applicants (IPC)

Class C05,2013–2023, worldwide · Source: EPO PATSTAT

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

Top Applicants (CPC)

Class C05,2013–2023, worldwide · Source: EPO PATSTAT

CHINESE ACADEMY OF SCIENCES 654
BASF (BADISCHE ANILIN & SODA FABRIK) DE 452
YARA INTERNATIONAL NO 434
SHANDONG SUNWAY LANDSCAPE TECHNOLOGY COMPANY 315
SHENZHEN BATIAN ECOTYPIC ENGINEERING COMPANY 253
GUIZHOU UNIVERSITY 251
GUILIN JIEYU ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY COMPANY 236
GUANGXI ACADEMY OF AGRICULTURAL SCIENCES 205
CHINA AGRICULTURAL UNIVERSITY 197
KOCH AGRONOMIC SERVICES US 194