IPC Subgroup
A44B 1/18 adapted for special ways of fastening
Introduced: September 1968
Last revised: January 2006
Full Title
Buttons > adapted for special ways of fastening
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- HABERDASHERY; JEWELLERY
- Subclass:
- BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
8 direct subcodes
Child Classifications
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- A44B 1/2 attached by thread visible to the front
- A44B 1/22 attached by thread not visible to the front
- A44B 1/26 with resilient shank
- A44B 1/28 with shank and counterpiece
- A44B 1/38 Clamping by spring action
- A44B 1/4 with helical wire-shank screwed into material
- A44B 1/42 with deformable prongs
- A44B 1/44 with deformable counterpiece
Top Applicants
Top 10 applicants by patent filingsfor class A44, 2013–2023, worldwide · Source: EPO PATSTAT
- YOSHIDA KOGYO JP 1,597
- YOSHIDA KOGYO 1,058
- ZHEJIANG WEIXING INDUSTRIAL DEVELOPMENT COMPANY 596
- FUJIAN SBS ZIPPER SCIENCE & TECHNOLOGY COMPANY 471
- GOERTEK TECHNOLOGY COMPANY 462
- GUANGDONG XIAOTIANCAI TECHNOLOGY COMPANY 408
- THE SWATCH GROUP RESEARCH AND DEVELOPMENT CH 278
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 267
- OMEGA CH 194
- APPLE US 187