A45D 1/04
By electricity
Official title: by electricity
A45D1/04 (By electricity) appears on 467 US grants and 725 published applications in this corpus.
Search patents in A45D- Granted patents
- 467
- Published applications
- 725
- Assignees
- 198
- Inventors
- 1,046
- 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 | 5 | 0 |
| 1982 | 11 | 0 |
| 1983 | 3 | 0 |
| 1984 | 11 | 0 |
| 1985 | 7 | 0 |
| 1986 | 10 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 13 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 9 | 0 |
| 1999 | 7 | 0 |
| 2000 | 9 | 0 |
| 2001 | 4 | 2 |
| 2002 | 5 | 4 |
| 2003 | 8 | 8 |
| 2004 | 1 | 7 |
| 2005 | 5 | 23 |
| 2006 | 4 | 15 |
| 2007 | 3 | 17 |
| 2008 | 4 | 25 |
| 2009 | 5 | 14 |
| 2010 | 4 | 27 |
| 2011 | 12 | 39 |
| 2012 | 10 | 20 |
| 2013 | 26 | 29 |
| 2014 | 13 | 26 |
| 2015 | 17 | 41 |
| 2016 | 16 | 38 |
| 2017 | 18 | 33 |
| 2018 | 15 | 40 |
| 2019 | 15 | 24 |
| 2020 | 17 | 44 |
| 2021 | 18 | 20 |
| 2022 | 17 | 34 |
| 2023 | 16 | 51 |
| 2024 | 25 | 62 |
| 2025 | 23 | 50 |
| 2026 | 21 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hairstyling device6 Oct 2026US 12,751,531 B2Dyson Technology Limited
- Hand held hair appliance having filter grill1 Sep 2026US 12,722,111 B2Kaz Europe SàRl
- Hair styling appliance25 Aug 2026US 12,714,215 B2Dyson Technology Limited
- Hairstyling device28 Jul 2026US 12,690,653 B2Dyson Technology Limited
- 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
- Heated hair styling device69US 6,070,596 AWahl Clipper Corporation · 2000