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DIFF Subgroup
A47C 23/12

using tensioned springs, e.g. flat type (A47C23/02 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: using tensioned springs, e.g. of flat type

CPC: using tensioned springs, e.g. flat type (A47C23/02 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases > using tensioned springs, e.g. of flat type

CPC:

Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases > using tensioned springs, e.g. flat type (A47C23/02 takes precedence)

Of 9 combined children, 8 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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  • A47C 23/125 CPC only CPC only
  • A47C 23/16 of plane meandering type IPC+CPC Available in IPC and CPC
  • A47C 23/18 of resilient webbing IPC+CPC Available in IPC and CPC
  • A47C 23/20 of resilient sheet form IPC+CPC Available in IPC and CPC
  • A47C 23/22 of tensioned rubber cords or like cords IPC+CPC Available in IPC and CPC
  • A47C 23/24 using tensioned textile or other non-resilient strips IPC+CPC Available in IPC and CPC
  • A47C 23/26 Frames therefor; Connecting the springs to the frame IPC+CPC Available in IPC and CPC
  • A47C 23/28 Tensioning devices therefor IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class A47,2013–2023, worldwide · Source: EPO PATSTAT

  1. ZHEJIANG SUPOR 13,571
  2. MIDEA 10,855
  3. JOYOUNG COMPANY 10,106
  4. FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MANUFACTURING COMPANY 9,846
  5. LG ELECTRONICS KR 7,657
  6. GREE ELECTRIC APPLIANCES 4,805
  7. GUANGDONG MIDEA ELECTRICAL APPLIANCE COMPANY 4,508
  8. NINGBO FOTILE KITCHENWARE COMPANY 4,300
  9. HAIER SMART HOME 3,964
  10. BSH (BOSCH UND SIEMENS HAUSGERAETE) DE 3,910

Top Applicants (CPC)

Class A47,2013–2023, worldwide · Source: EPO PATSTAT

  1. LG ELECTRONICS KR 8,633
  2. BSH (BOSCH UND SIEMENS HAUSGERAETE) DE 4,258
  3. SAMSUNG ELECTRONICS COMPANY KR 3,477
  4. MIDEA 3,257
  5. SEB FR 2,786
  6. FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MANUFACTURING COMPANY 2,614
  7. GREE ELECTRIC APPLIANCES 2,370
  8. VORWERK & CO. INTERHOLDING DE 2,248
  9. HAIER SMART HOME 2,169
  10. MIELE DE 2,019