Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould

Introduced: January 1985

Last revised: January 2006

Full Title

Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor > for making articles of definite length, i.e. discrete articles > Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould

Classification Context

Section:: PERFORMING OPERATIONS; TRANSPORTING
Class:: WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
Subclass:: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

Filing statistics

IPC B29C 41/04 belongs to the parent subclass B29C, which recorded 798,253 patent applications worldwide between 2013 and 2023. Annual filings grew from 41,414 in 2013 to 85,002 in 2023 (+105%), peaking at 100,948 applications in 2020. The most active applicants in class B29 are HEWLETT-PACKARD DEVELOPMENT COMPANY (3,802 applications), BOEING COMPANY (3,087 applications) and COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN (2,315 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

coating with PLASTIC or substances in a plastic statecoating with PLASTICS or substances in a plastic state

1 direct subcode

Child Classifications

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B29C 41/06 about two or more axes

Top Applicants

Top 10 applicants by patent filingsfor class B29, 2013–2023, worldwide · Source: EPO PATSTAT

HEWLETT-PACKARD DEVELOPMENT COMPANY US 3,802
BOEING COMPANY US 3,087
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN FR 2,315
SUMITOMO RUBBER IND 1,784
GE (GENERAL ELECTRIC COMPANY) US 1,663
CANON 1,658
3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 1,587
TORAY INDUSTRIES JP 1,555
BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,470
LG CHEM KR 1,415