A45D 6/20
Devices for controlling the temperature of hair curlers
A45D6/20 (Devices for controlling the temperature of hair curlers) appears on 22 US grants and 50 published applications in this corpus.
Search patents in A45D- Granted patents
- 22
- Published applications
- 50
- Assignees
- 28
- Inventors
- 121
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 2 |
| 2016 | 1 | 5 |
| 2017 | 2 | 4 |
| 2018 | 0 | 3 |
| 2019 | 0 | 3 |
| 2020 | 2 | 4 |
| 2021 | 2 | 2 |
| 2022 | 3 | 0 |
| 2023 | 2 | 6 |
| 2024 | 2 | 4 |
| 2025 | 4 | 10 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Smart nozzle for hair dryer15US 10,918,184 B1Tech 4 Hair, LLC · 2021
- Appliance for shaping fibrous material15US 9,781,988 B2The Procter & Gamble Company · 2017
- Appliance for shaping fibrous material14US 9,713,369 B2The Procter & Gamble Company · 2017
- Hair curler with slot adapted to receive a rail-like heat conductor8US 6,114,661 AConair Corporation · 2000
- Hair styling apparatus8US 8,567,415 B2Tenacta Group S.P.A. · 2013