A41G 5/004
Hairpieces
Official title: {Hairpieces, e.g. hair extensions}
A41G5/004 (Hairpieces) appears on 355 US grants and 644 published applications in this corpus.
Search patents in A41G- Granted patents
- 355
- Published applications
- 644
- Assignees
- 141
- Inventors
- 671
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 3 | 2 |
| 2002 | 3 | 2 |
| 2003 | 3 | 5 |
| 2004 | 5 | 11 |
| 2005 | 7 | 23 |
| 2006 | 4 | 16 |
| 2007 | 9 | 12 |
| 2008 | 5 | 12 |
| 2009 | 4 | 15 |
| 2010 | 5 | 14 |
| 2011 | 6 | 28 |
| 2012 | 7 | 14 |
| 2013 | 12 | 27 |
| 2014 | 14 | 19 |
| 2015 | 16 | 29 |
| 2016 | 13 | 37 |
| 2017 | 9 | 47 |
| 2018 | 17 | 46 |
| 2019 | 22 | 40 |
| 2020 | 18 | 40 |
| 2021 | 21 | 48 |
| 2022 | 27 | 32 |
| 2023 | 23 | 29 |
| 2024 | 24 | 33 |
| 2025 | 19 | 38 |
| 2026 | 22 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hair extension apparatus6 Oct 2026US 12,751,511 B2Shake-N-Go Fashion, Inc.
- Hair weft and preparation process thereof29 Sep 2026US 12,745,813 B2Wellna Co., Ltd
- Hair extension bar comb tool and method of use25 Aug 2026US 12,714,171 B2
- Hair extension care apparatus18 Aug 2026US 12,708,190 B1Wellna Co., Ltd
- Compression-type textured strand for wig and method for manufacturing same21 Jul 2026US 12,685,357 B2
- Hair extension kit and apparatus8 Oct 2026US 2026/0305747 A1
- Hair extension apparatus1 Oct 2026US 2026/0294024 A1Shake-N-Go Fashion, Inc.
- Hair Extension Device1 Oct 2026US 2026/0294025 A1
- Hair extension system1 Oct 2026US 2026/0294026 A1
- Hand-operated implement with controllable hand grip rotation1 Oct 2026US 2026/0295778 A1
Most cited
By later US patents
- Automated hair isolation and processing system91US 6,973,931 B12005
- Hair piece using decorative clip83US 5,501,239 ARevlon Consumer Products Corporation · 1996
- System and method for using hidden hair combs to enhance hair appearance75US 6,035,861 A2000
- Hairpiece toy73US 5,890,498 AKawaguchi Co., Ltd. · 1999
- Hairpieces67US 4,600,029 A1986