C04B 5/00 Treatment of slag (manufacture of slag wool C03B; in, or for, the production of metals C21B, C22B); Artificial stone from molten slag
Introduced: September 1968
Title
Titles differ between systems:
IPC: Treatment of molten slag; Artificial stone from molten slag
CPC: Treatment of slag (manufacture of slag wool C03B; in, or for, the production of metals C21B, C22B); Artificial stone from molten slag
Full Title
Full titles differ between systems:
Treatment of molten slag; Artificial stone from molten slag
Treatment of slag (manufacture of slag wool C03B; in, or for, the production of metals C21B, C22B); Artificial stone from molten slag
Additional Content IPC
Manufacture of slag wool Treatment of slag in, or for the production of metals ,
Of 2 combined children, 1 exist in both systems.
1 codes exist only in IPC.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- C04B 5/06 Ingredients, other than water, added to the molten slag ; Treatment with gases or gas generating compounds, e.g. to obtain porous slag since 1985 +1 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class C04,2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 2,095
- WUHAN UNIVERSITY OF TECHNOLOGY 1,205
- NGK INSULATORS JP 1,133
- HALLIBURTON ENERGY SERVICES GROUP US 1,049
- SIKA TECHNOLOGY CH 1,041
- GUILIN UNIVERSITY OF TECHNOLOGY 807
- WUHAN UNIVERSITY OF SCIENCE AND TECHNOLOGY 806
- SOUTHEAST UNIVERSITY 801
- CORNING US 777
- UNITED STATES GYPSUM COMPANY US 739
Top Applicants (CPC)
Class C04,2013–2023, worldwide · Source: EPO PATSTAT
- HALLIBURTON ENERGY SERVICES GROUP US 2,158
- CHINESE ACADEMY OF SCIENCES 1,569
- NGK INSULATORS JP 1,504
- SIKA TECHNOLOGY CH 1,181
- CORNING US 974
- WUHAN UNIVERSITY OF TECHNOLOGY 926
- UNITED STATES GYPSUM COMPANY US 882
- GE (GENERAL ELECTRIC COMPANY) US 828
- MITSUBISHI MATERIALS CORPORATION JP 792
- SAUDI ARABIAN OIL COMPANY SA 686