B28C 5/38 wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means
Full Title
Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions (controlling the mixing apparatus and supplying the ingredients B28C7/00 ) > wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means
Filing statistics
CPC B28C 5/38 belongs to the parent subclass B28C, which recorded 19,517 patent applications worldwide between 2013 and 2023. Annual filings grew from 581 in 2013 to 1,976 in 2023 (+240%), peaking at 3,040 applications in 2020. The most active applicants in class B28 are DISCO CORPORATION (1,471 applications), HILTI (575 applications) and CORNING (544 applications).
Source: EPO PATSTAT, worldwide filings
1 direct subcode
Child Classifications
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Top Applicants
Top 10 applicants by patent filingsfor class B28, 2013–2023, worldwide · Source: EPO PATSTAT
- DISCO CORPORATION JP 1,471
- HILTI LI 575
- CORNING US 544
- MITSUBOSHI DIAMOND INDUSTRIAL COMPANY JP 518
- UNITED STATES GYPSUM COMPANY US 485
- DISCO ABRASIVE SYSTEM 459
- GE (GENERAL ELECTRIC COMPANY) US 454
- MITSUBOSHI DIAMOND INDUSTRIAL COMPANY 439
- DISCO CORPORATION 403
- NGK INSULATORS JP 308