A45D 2/00
Hair-curling or hair-waving appliances
Official title: Hair-curling or hair-waving appliances (heated curling-tongs, curling-irons A45D1/00 ){; Appliances for hair dressing treatment not otherwise provided for}
A45D2/00 (Hair-curling or hair-waving appliances) appears on 1,148 US grants and 1,297 published applications in this corpus.
Search patents in A45D- Granted patents
- 1,148
- Published applications
- 1,297
- Assignees
- 384
- Inventors
- 2,084
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 17 | 0 |
| 1977 | 20 | 0 |
| 1978 | 2 | 0 |
| 1979 | 11 | 0 |
| 1980 | 23 | 0 |
| 1981 | 24 | 0 |
| 1982 | 16 | 0 |
| 1983 | 11 | 0 |
| 1984 | 11 | 0 |
| 1985 | 17 | 0 |
| 1986 | 24 | 0 |
| 1987 | 16 | 0 |
| 1988 | 10 | 0 |
| 1989 | 15 | 0 |
| 1990 | 13 | 0 |
| 1991 | 17 | 0 |
| 1992 | 10 | 0 |
| 1993 | 13 | 0 |
| 1994 | 15 | 0 |
| 1995 | 16 | 0 |
| 1996 | 26 | 0 |
| 1997 | 22 | 0 |
| 1998 | 44 | 0 |
| 1999 | 39 | 0 |
| 2000 | 34 | 0 |
| 2001 | 16 | 2 |
| 2002 | 28 | 15 |
| 2003 | 21 | 29 |
| 2004 | 13 | 44 |
| 2005 | 8 | 35 |
| 2006 | 23 | 26 |
| 2007 | 14 | 34 |
| 2008 | 8 | 29 |
| 2009 | 18 | 36 |
| 2010 | 9 | 43 |
| 2011 | 13 | 34 |
| 2012 | 24 | 37 |
| 2013 | 29 | 45 |
| 2014 | 30 | 47 |
| 2015 | 31 | 63 |
| 2016 | 26 | 76 |
| 2017 | 31 | 81 |
| 2018 | 24 | 86 |
| 2019 | 37 | 52 |
| 2020 | 43 | 73 |
| 2021 | 45 | 47 |
| 2022 | 30 | 64 |
| 2023 | 35 | 73 |
| 2024 | 50 | 93 |
| 2025 | 39 | 80 |
| 2026 | 37 | 53 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A45D 2/12Hair winders or hair curlers for use parallel to the scalp, i.e.348
- A45D 2/001Hair straightening appliances337
- A45D 2/36Hair curlers or hair winders with incorporated heating or drying means195
- A45D 2002/003Appliances for hair dressing treatment not otherwise provided forIndexing code135
- A45D 2/48Eyelash curlers82
- A45D 2/02Hair winders or hair curlers for use substantially perpendicular to the scalp76
- A45D 2/38Surface-wave devices58
- A45D 2/46Hair-waving caps18
Recent patents
- Volume hair dryer brush6 Oct 2026US 12,751,532 B2
- Straightening comb with elastic floating teeth6 Oct 2026US 12,751,533 B2Dongguan Jinfeng Science and Technology Co., Ltd.
- Systems and methods for unraveling braids8 Sep 2026US 12,727,654 B2Swella Inc.
- Braiding training tool1 Sep 2026US 12,721,412 B2
- Hair straightening appliance with adjustable heat plate1 Sep 2026US 12,721,413 B2Conair Corporation
- A haircare appliance8 Oct 2026US 2026/0305786 A1Dyson Technology Limited
- Hair styling appliance with baffle(s)8 Oct 2026US 2026/0305790 A1Dyson Operations PTE. LTD.
- Methods and systems for a hair lengthening device1 Oct 2026US 2026/0294065 A1
- Heater for heating a metal eyelash curler and method therefor1 Oct 2026US 2026/0294066 A1
- Attachment for a haircare appliance1 Oct 2026US 2026/0294072 A1Dyson Technology Limited
Most cited
By later US patents
- Hydrophilic foam pad for hair styling111US 5,261,426 ACreative Products Resource Associates, Ltd. · 1993
- Detachable hairbrush77US 5,992,423 A1999
- Electrically heating hair styling tongs selectively usable to crimp or straighten hair72US 4,739,151 AS. A. Faco · 1988
- Double blocking members sealing a single opening means70US 5,007,442 A1991
- Catalyst combustion curling device69US 4,502,465 AKoizumi Sangyo Co., Ltd. · 1985