IPC Main Group
A63B 51/00 Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings
Introduced: September 1968
Last revised: January 2015
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- SPORTS; GAMES; AMUSEMENTS
- Subclass:
- APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
Related Keywords
BADMINTONBATTLEDORESRACKETS for ball gamesSTRINGING tennis racketsTENNIS rackets
9 direct subcodes
Child Classifications
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- A63B 51/005 Devices for measuring the tension of strings
- A63B 51/01 Pre-woven string-sets ready for insertion into a frame
- A63B 51/015 String-aligning tools
- A63B 51/02 Strings; String substitutes; Products applied on strings, e.g. for protection against humidity or wear
- A63B 51/06 Double-sided stringing
- A63B 51/08 Diagonal stringing
- A63B 51/1 Reinforcements for stringing
- A63B 51/12 Devices arranged in or on the racket for adjusting the tension of the strings
- A63B 51/14 Arrangements for stringing, e.g. for controlling the tension of the strings during stringing
Top Applicants
Top 10 applicants by patent filingsfor 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