IPC Subgroup
A44B 13/02 with spring closure of hook
Introduced: September 1968
Last revised: January 2006
Full Title
Hook or eye fasteners > with spring closure of hook
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- HABERDASHERY; JEWELLERY
- Subclass:
- BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
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