A45D 4/08
Separate devices designed for heating hair curlers or hair-wavers: for flat curling
Official title: for flat curling, e.g. with means for decreasing the heat (A45D4/14, A45D4/16 take precedence)
A45D4/08 (Separate devices designed for heating hair curlers or hair-wavers: for flat curling) appears on 35 US grants and 29 published applications in this corpus.
Search patents in A45D- Granted patents
- 35
- Published applications
- 29
- Assignees
- 16
- Inventors
- 73
- Latest grant
- 3 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 3 |
| 2006 | 0 | 0 |
| 2007 | 2 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 3 |
| 2014 | 0 | 6 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 2 |
| 2018 | 0 | 1 |
| 2019 | 0 | 2 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Hair treatment device3 Oct 2023US 11,771,193 B2L'oreal
- Heated hair setter apparatus and method15 Mar 2022US 11,272,772 B2Spectrum Brands, Inc.
- Hair drying and styling system26 May 2020US 10,660,417 B2
- Heated hair setter apparatus and method7 Jan 2020US 10,524,553 B2Spectrum Brands, Inc.
- Heated hair curler with hinged hair grip and applicator handle6 Sep 2016US 9,433,272 B2
- Hair roller5 Jun 2025US 2025/0176693 A1Dyson Technology Limited
- Hair roller22 May 2025US 2025/0160496 A1Dyson Technology Limited
- Eyelash curling device and method for curling eyelash using same27 Jul 2023US 2023/0232955 A1
- Tank With A Hooking Device For A Steam Hairdressing Apparatus10 Feb 2022US 2022/0039532 A1Seb S. A.
- Heated hair setter apparatus and method26 Mar 2020US 2020/0093239 A1Spectrum Brands, Inc.
Most cited
By later US patents
- Hair curling iron31US 5,494,058 AChina Pacific Trade Ltd. · 1996
- Steam curling iron having interchangeable hair winding mandrels28US 4,034,201 AClairol Incorporated · 1977
- Hair drying and styling system25US 10,660,417 B22020
- Steam hair styling apparatus24US 5,263,501 A1993
- Combined curling iron and hair roller23US 5,400,810 AConair Corporation · 1995