DIFF Subgroup
A47C 31/02 Upholstery attaching means
Introduced: September 1968
Full Title
Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets > Upholstery attaching means
CPC subdivides this area 3x more granularly than IPC with 2 additional codes.
2 codes are CPC-only extensions.
Child Classifications
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- A47C 31/04 Clamps for attaching flat elastic strips or flat meandering springs to frames IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class A47,2013–2023, worldwide · Source: EPO PATSTAT
- ZHEJIANG SUPOR 13,571
- MIDEA 10,855
- JOYOUNG COMPANY 10,106
- FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MANUFACTURING COMPANY 9,846
- LG ELECTRONICS KR 7,657
- GREE ELECTRIC APPLIANCES 4,805
- GUANGDONG MIDEA ELECTRICAL APPLIANCE COMPANY 4,508
- NINGBO FOTILE KITCHENWARE COMPANY 4,300
- HAIER SMART HOME 3,964
- BSH (BOSCH UND SIEMENS HAUSGERAETE) DE 3,910
Top Applicants (CPC)
Class A47,2013–2023, worldwide · Source: EPO PATSTAT
- LG ELECTRONICS KR 8,633
- BSH (BOSCH UND SIEMENS HAUSGERAETE) DE 4,258
- SAMSUNG ELECTRONICS COMPANY KR 3,477
- MIDEA 3,257
- SEB FR 2,786
- FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MANUFACTURING COMPANY 2,614
- GREE ELECTRIC APPLIANCES 2,370
- VORWERK & CO. INTERHOLDING DE 2,248
- HAIER SMART HOME 2,169
- MIELE DE 2,019