DIFF Subgroup
A63B 43/04 with an eccentric centre of gravity; with mechanism for changing the centre of gravity (solid balls A63B37/10)
Introduced: September 1968
Title
Titles differ between systems:
IPC: with an eccentric centre of gravity or with mechanism for changing the centre of gravity
CPC: with an eccentric centre of gravity; with mechanism for changing the centre of gravity (solid balls A63B37/10)
Full Title
Full titles differ between systems:
IPC:
Balls with special arrangements > with an eccentric centre of gravity or with mechanism for changing the centre of gravity
CPC:
Balls with special arrangements > with an eccentric centre of gravity; with mechanism for changing the centre of gravity (solid balls A63B37/10)
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
- SANKYO 23,899
- SANYO PRODUCT COMPANY 23,718
- DAIICHI SHOKAI COMPANY 13,338
- KYORAKU SANGYO 10,447
- UNIVERSAL ENTERTAINMENT CORPORATION 9,545
- SANEI R & D COMPANY 9,135
- SAMMY CORPORATION 7,126
- NEWGIN CORPORATION 5,651
- NETEASE 4,877
- HEIWA CORPORATION 3,938
Top Applicants (CPC)
Class A63,2013–2023, worldwide · Source: EPO PATSTAT
- NETEASE 4,324
- TENCENT TECHNOLOGY (SHENZHEN) COMPANY 3,255
- SONY INTERACTIVE ENTERTAINMENT JP 2,643
- TENCENT TECHNOLOGY (SHENZHEN) COMPANY CN 2,353
- UNIVERSAL CITY STUDIOS US 2,005
- KARSTEN MANUFACTURING CORPORATION US 1,883
- ACUSHNET COMPANY US 1,495
- MICROSOFT TECHNOLOGY LICENSING US 1,272
- NINTENDO COMPANY JP 1,260
- SONY CORPORATION JP 1,169