WARPING, BEAMING, OR LEASING

Introduced: September 1968

Classification Context

Section:: TEXTILES; PAPER
Class:: YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
Subclass:: WARPING, BEAMING, OR LEASING

Description

D02H covers machinery and processes for preparing yarns prior to weaving or other fabric formation. It encompasses warping (arranging multiple yarns in parallel), beaming (winding warped yarns onto weaver's beams), and leasing (separating and organizing yarn groups for loom threading). This subclass includes equipment such as warping frames, beaming machines, lease rods, and related auxiliary apparatus used in textile manufacturing.

Filing statistics

IPC subclass D02H recorded 4,719 patent applications worldwide between 2013 and 2023. Annual filings grew from 262 in 2013 to 510 in 2023 (+95%), peaking at 657 applications in 2020. The most active applicants in class D02 are JIANGNAN UNIVERSITY (383 applications), TORAY INDUSTRIES (349 applications) and TORAY INDUSTRIES (281 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

BEAMING threadstextile WARPING

7 direct subcodes

Child Classifications

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D02H 1/00 Creels, i.e. apparatus for supplying a multiplicity of individual threads
D02H 11/00 Methods or apparatus not provided for in groups , e.g. for cleaning the warp
D02H 13/00 Details of machines of the other groups of this subclass
D02H 3/00 Warping machines
D02H 5/00 Beaming machines
D02H 7/00 Combined warping and beaming machines
D02H 9/00 Leasing

Top Applicants

Top 10 applicants by patent filingsfor class D02, 2013–2023, worldwide · Source: EPO PATSTAT

JIANGNAN UNIVERSITY 383
TORAY INDUSTRIES JP 349
TORAY INDUSTRIES 281
OERLIKON TEXTILE & COMPANY DE 224
CONTINENTAL REIFEN DE 208
NATIONAL DONG HWA UNIVERSITY 203
KOLON INDUSTRIES KR 188
WUHAN TEXTILE UNIVERSITY 184
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN FR 176
TMT MACHINERY 155