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DIFF Subgroup
A63B 51/005

Devices for measuring the tension of strings (for controlling the tension during stringing A63B51/14)

Introduced: January 2015

Title

Titles differ between systems:

IPC: Devices for measuring the tension of strings

CPC: Devices for measuring the tension of strings (for controlling the tension during stringing A63B51/14)

Full Title

Full titles differ between systems:

IPC:

Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings > Devices for measuring the tension of strings

CPC:

Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings > Devices for measuring the tension of strings (for controlling the tension during stringing A63B51/14)

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

Class A63,2013–2023, worldwide · Source: EPO PATSTAT

  1. SANKYO 23,899
  2. SANYO PRODUCT COMPANY 23,718
  3. DAIICHI SHOKAI COMPANY 13,338
  4. KYORAKU SANGYO 10,447
  5. UNIVERSAL ENTERTAINMENT CORPORATION 9,545
  6. SANEI R & D COMPANY 9,135
  7. SAMMY CORPORATION 7,126
  8. NEWGIN CORPORATION 5,651
  9. NETEASE 4,877
  10. HEIWA CORPORATION 3,938

Top Applicants (CPC)

Class A63,2013–2023, worldwide · Source: EPO PATSTAT

  1. NETEASE 4,324
  2. TENCENT TECHNOLOGY (SHENZHEN) COMPANY 3,255
  3. SONY INTERACTIVE ENTERTAINMENT JP 2,643
  4. TENCENT TECHNOLOGY (SHENZHEN) COMPANY CN 2,353
  5. UNIVERSAL CITY STUDIOS US 2,005
  6. KARSTEN MANUFACTURING CORPORATION US 1,883
  7. ACUSHNET COMPANY US 1,495
  8. MICROSOFT TECHNOLOGY LICENSING US 1,272
  9. NINTENDO COMPANY JP 1,260
  10. SONY CORPORATION JP 1,169