A43B 21/52
Interchangeable heel parts without special attachments
A43B21/52 (Interchangeable heel parts without special attachments) appears on 50 US grants and 56 published applications in this corpus.
Search patents in A43B- Granted patents
- 50
- Published applications
- 56
- Assignees
- 12
- Inventors
- 49
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 3 |
| 2003 | 1 | 2 |
| 2004 | 1 | 12 |
| 2005 | 5 | 0 |
| 2006 | 9 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 2 | 2 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 3 |
| 2013 | 1 | 6 |
| 2014 | 1 | 1 |
| 2015 | 2 | 2 |
| 2016 | 5 | 3 |
| 2017 | 0 | 2 |
| 2018 | 1 | 2 |
| 2019 | 3 | 1 |
| 2020 | 0 | 6 |
| 2021 | 2 | 2 |
| 2022 | 1 | 0 |
| 2023 | 2 | 2 |
| 2024 | 3 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Modular heel system19 May 2026US 12,628,910 B1
- Device for attaching removable interchangeable heels for shoes with two springs31 Dec 2024US 12,178,286 B2
- Interchangeable heel device for a shoe and method25 Jun 2024US 12,016,429 B2
- Shoe with a high heel to low heel conversion14 May 2024US 11,980,250 B2High-Low Heel, LLC
- Footwear with securely interchangeable heel portions29 Aug 2023US 11,737,516 B1
- A height adjustable modular heel13 Mar 2025US 2025/0082066 A1Grace & Gait Pte Ltd
- Device for attaching removable interchangeable heels for shoes with two springs11 Jul 2024US 2024/0225194 A1
- Footwear with securely interchangeable heel portions10 Aug 2023US 2023/0248112 A1
- An Interchangeable Heel Device for a Shoe and Method4 May 2023US 2023/0138799 A1
- Shoe with a high heel to low heel conversion23 Dec 2021US 2021/0392997 A1High-Low Heel, LLC
Most cited
By later US patents
- Athletic shoe with improved sole103US 5,560,126 AAkeva L.L.C. · 1996
- Athletic shoe with improved sole80US 5,615,497 A1997
- Shoe with exchangeable heel67US 4,805,320 A1989
- Athletic shoe with improved sole58US 5,918,384 AAkeva L.L.C. · 1999
- Athletic shoe with improved sole47US 6,050,002 AAkeva L.L.C. · 2000