A43B 21/30
Heels with metal springs
A43B21/30 (Heels with metal springs) appears on 87 US grants and 79 published applications in this corpus.
Search patents in A43B- Granted patents
- 87
- Published applications
- 79
- Assignees
- 32
- Inventors
- 140
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 5 |
| 2004 | 2 | 6 |
| 2005 | 1 | 3 |
| 2006 | 2 | 4 |
| 2007 | 2 | 2 |
| 2008 | 1 | 6 |
| 2009 | 0 | 4 |
| 2010 | 3 | 5 |
| 2011 | 0 | 5 |
| 2012 | 2 | 5 |
| 2013 | 3 | 1 |
| 2014 | 1 | 3 |
| 2015 | 1 | 1 |
| 2016 | 3 | 3 |
| 2017 | 2 | 6 |
| 2018 | 2 | 2 |
| 2019 | 2 | 1 |
| 2020 | 2 | 7 |
| 2021 | 3 | 0 |
| 2022 | 6 | 3 |
| 2023 | 2 | 1 |
| 2024 | 3 | 3 |
| 2025 | 1 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High heeled shoe25 Aug 2026US 12,714,197 B1
- Heel tip cushion with anchoring mechanism inside heel stem11 Aug 2026US 12,702,198 B2
- Heel tip cushion with anchoring mechanism inside heel stem3 Jun 2025US 12,317,954 B2
- Device for attaching removable interchangeable heels for shoes with two springs31 Dec 2024US 12,178,286 B2
- Shoe with pivoting heel10 Dec 2024US 12,161,190 B1
- Shoe having spring system11 Dec 2025US 2025/0374993 A1
- Heel tip cushion with anchoring mechanism inside heel stem30 Oct 2025US 2025/0331607 A1
- Heel tip cushion with anchoring mechanism inside heel stem8 Aug 2024US 2024/0260716 A1
- Device for attaching removable interchangeable heels for shoes with two springs11 Jul 2024US 2024/0225194 A1
- Device for posture correction and kegel exercise11 Jul 2024US 2024/0225937 A1
Most cited
By later US patents
- Insert for a shoe sole196US 5,528,842 AThe Rockport Company, Inc. · 1996
- Shoe and foot prosthesis with bending beam spring structures186US 6,029,374 A2000
- Biomechanically tuned shoe construction168US 4,342,158 A1982
- Heel construction168US 4,592,153 A1986
- Shoe and foot prosthesis with bending beam spring structures168US 5,701,686 A1997