A63B 51/00
Stringing tennis, badminton or like rackets
Official title: Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings
A63B51/00 (Stringing tennis, badminton or like rackets) appears on 493 US grants and 219 published applications in this corpus.
Search patents in A63B- Granted patents
- 493
- Published applications
- 219
- Assignees
- 142
- Inventors
- 611
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 19 | 0 |
| 1978 | 19 | 0 |
| 1979 | 11 | 0 |
| 1980 | 12 | 0 |
| 1981 | 16 | 0 |
| 1982 | 22 | 0 |
| 1983 | 14 | 0 |
| 1984 | 12 | 0 |
| 1985 | 7 | 0 |
| 1986 | 10 | 0 |
| 1987 | 6 | 0 |
| 1988 | 10 | 0 |
| 1989 | 14 | 0 |
| 1990 | 8 | 0 |
| 1991 | 9 | 0 |
| 1992 | 12 | 0 |
| 1993 | 13 | 0 |
| 1994 | 19 | 0 |
| 1995 | 13 | 0 |
| 1996 | 5 | 0 |
| 1997 | 9 | 0 |
| 1998 | 13 | 0 |
| 1999 | 6 | 0 |
| 2000 | 15 | 0 |
| 2001 | 13 | 5 |
| 2002 | 11 | 6 |
| 2003 | 15 | 11 |
| 2004 | 7 | 7 |
| 2005 | 10 | 10 |
| 2006 | 10 | 9 |
| 2007 | 11 | 15 |
| 2008 | 11 | 15 |
| 2009 | 8 | 7 |
| 2010 | 7 | 9 |
| 2011 | 12 | 16 |
| 2012 | 8 | 10 |
| 2013 | 2 | 10 |
| 2014 | 8 | 9 |
| 2015 | 9 | 10 |
| 2016 | 6 | 8 |
| 2017 | 6 | 9 |
| 2018 | 4 | 8 |
| 2019 | 7 | 8 |
| 2020 | 8 | 8 |
| 2021 | 5 | 6 |
| 2022 | 5 | 6 |
| 2023 | 2 | 9 |
| 2024 | 2 | 2 |
| 2025 | 1 | 3 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A63B 51/02Strings168
- A63B 51/14Arrangements for stringing111
- A63B 51/12Devices arranged in or on the racket for adjusting the tension of62
- A63B 51/10Reinforcements for stringing41
- A63B 51/08Diagonal stringing33
- A63B 51/005Devices for measuring the tension of strings27
- A63B 51/06Double-sided stringing24
- A63B 51/01Pre-woven string-sets ready for insertion into a frame23
All 12 subgroupsShow fewer
- A63B 51/015String-aligning tools21
- A63B 51/004Stringing tennis, badminton or like rackets: using strings with different tension on17
- A63B 51/001Stringing tennis, badminton or like rackets: using strings made of different materials7
- A63B 51/002Stringing tennis, badminton or like rackets: using strings with different cross-sections on5
Recent patents
- Tennis racket dampener device with variable dampening21 Apr 2026US 12,605,605 B1
- Negative Poisson's ratio materials for racquets and golf tees8 Jul 2025US 12,350,556 B2
- Racket with a string tensioning device27 Aug 2024US 12,070,659 B2Elevating Sports B.V.
- Process of manufacturing of adornment artifacts using recycled strings of tennis rackets30 Apr 2024US 11,969,063 B2
- Fully automatic racket stringing system12 Sep 2023US 11,752,397 B2
- Devices, systems, and methods17 Sep 2026US 2026/0273114 A1P Tech, LLC
- Racquet mounting system3 Sep 2026US 2026/0257109 A1
- Sports racket training device6 Aug 2026US 2026/0224962 A1
- Racket13 Nov 2025US 2025/0345666 A1Sumitomo Rubber Industries, Ltd.
- Negative poisson's ratio materials for racquets and golf tees2 Oct 2025US 2025/0303240 A1
Most cited
By later US patents