A45D 1/02
Curling-tongs, i.e. tongs for use when hot: with means for internal heating
Official title: with means for internal heating, e.g. by liquid fuel
A45D1/02 (Curling-tongs, i.e. tongs for use when hot: with means for internal heating) appears on 520 US grants and 756 published applications in this corpus.
Search patents in A45D- Granted patents
- 520
- Published applications
- 756
- Assignees
- 205
- Inventors
- 1,108
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 7 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 9 | 0 |
| 1981 | 7 | 0 |
| 1982 | 15 | 0 |
| 1983 | 6 | 0 |
| 1984 | 11 | 0 |
| 1985 | 10 | 0 |
| 1986 | 10 | 0 |
| 1987 | 6 | 0 |
| 1988 | 10 | 0 |
| 1989 | 16 | 0 |
| 1990 | 8 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 12 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 5 | 2 |
| 2002 | 5 | 5 |
| 2003 | 9 | 13 |
| 2004 | 5 | 10 |
| 2005 | 7 | 25 |
| 2006 | 4 | 17 |
| 2007 | 4 | 19 |
| 2008 | 5 | 27 |
| 2009 | 7 | 15 |
| 2010 | 4 | 30 |
| 2011 | 12 | 39 |
| 2012 | 12 | 21 |
| 2013 | 27 | 29 |
| 2014 | 13 | 26 |
| 2015 | 17 | 41 |
| 2016 | 16 | 39 |
| 2017 | 18 | 33 |
| 2018 | 15 | 42 |
| 2019 | 16 | 25 |
| 2020 | 18 | 47 |
| 2021 | 18 | 20 |
| 2022 | 17 | 34 |
| 2023 | 18 | 52 |
| 2024 | 26 | 63 |
| 2025 | 23 | 50 |
| 2026 | 22 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Flat iron comb28 Jul 2026US 12,690,654 B2
- Hair styling appliance8 Oct 2026US 2026/0305785 A1Dyson Operations PTE. LTD.
- A haircare appliance8 Oct 2026US 2026/0305786 A1Dyson Technology Limited
- Adjustable tension hairstyling tool24 Sep 2026US 2026/0283320 A1L'ange Hair, Inc.
- Temperature control of a functional unit of a styling device24 Sep 2026US 2026/0283321 A1Koninklijke Philips N. V.
- Hair styling apparatus17 Sep 2026US 2026/0272135 A1Arachne, LLC
Most cited
By later US patents
- Electric hair curling iron with rechargeable battery power supply148US 4,354,092 AMatsushita Electric Industrial Co., Ltd. · 1982
- Hair styling iron having interchangeable heating tips127US 3,955,064 ALe Salon Bruno Demetrio Ltd. · 1976
- Compact hair curling iron76US 4,075,458 AThe Gillette Company · 1978
- Electrically heating hair styling tongs selectively usable to crimp or straighten hair72US 4,739,151 AS. A. Faco · 1988
- Catalyst combustion curling device69US 4,502,465 AKoizumi Sangyo Co., Ltd. · 1985