IPC Main Group
B28B 1/00 Producing shaped articles from the material
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- WORKING CEMENT, CLAY, OR STONE
- Subclass:
- SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
Filing statistics
IPC B28B 1/00 belongs to the parent subclass B28B, which recorded 124,681 patent applications worldwide between 2013 and 2023. Annual filings grew from 4,345 in 2013 to 15,254 in 2023 (+251%), peaking at 18,524 applications in 2020. The most active applicants in class B28 are MITSUBOSHI DIAMOND INDUSTRIAL COMPANY (868 applications), QINGDAO GAOCE TECHNOLOGY COMPANY (678 applications) and DISCO CORPORATION (500 applications).
Source: EPO PATSTAT, worldwide filings
14 direct subcodes
Child Classifications
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- B28B 1/02 by turning or jiggering
- B28B 1/04 by tamping or ramming
- B28B 1/08 by vibrating or jolting
- B28B 1/14 by simple casting, the material being neither forcibly fed nor positively compacted
- B28B 1/2 by centrifugal or rotational casting
- B28B 1/24 by injection moulding
- B28B 1/26 by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor
- B28B 1/29 by profiling or strickling the material in open moulds or on moulding surfaces
- B28B 1/3 by applying the material on to a core, or other moulding surface to form a layer thereon
- B28B 1/44 by forcing cores into filled moulds for forming hollow articles
- B28B 1/48 by removing material from solid section preforms for forming hollow articles, e.g. by punching or boring
- B28B 1/5 specially adapted for producing articles of expanded material, e.g. cellular concrete
- B28B 1/52 specially adapted for producing articles from mixtures containing fibres
- B28B 1/54 specially adapted for producing articles from molten material, e.g. slag
Top Applicants
Top 10 applicants by patent filingsfor class B28, 2013–2023, worldwide · Source: EPO PATSTAT
- MITSUBOSHI DIAMOND INDUSTRIAL COMPANY 868
- QINGDAO GAOCE TECHNOLOGY COMPANY 678
- DISCO CORPORATION JP 500
- ZHOU ZHAODI 500
- MITSUBOSHI DIAMOND INDUSTRIAL COMPANY JP 456
- HILTI LI 455
- CORNING US 407
- UNITED STATES GYPSUM COMPANY US 375
- ZHENGZHOU YUAN DONG REFRACTORIES COMPANY 370
- HUNAN SANY KUAIERJU RESIDENTIAL INDUSTRY COMPANY 351