A45D 1/12
Of helical or zig-zag shape
Official title: of helical or zig-zag shape
A45D1/12 (Of helical or zig-zag shape) appears on 19 US grants and 24 published applications in this corpus.
Search patents in A45D- Granted patents
- 19
- Published applications
- 24
- Assignees
- 13
- Inventors
- 31
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 2 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 2 |
| 2012 | 1 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 3 |
| 2015 | 0 | 0 |
| 2016 | 1 | 3 |
| 2017 | 1 | 2 |
| 2018 | 2 | 0 |
| 2019 | 0 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 1 |
| 2024 | 2 | 2 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hair styling device10 Feb 2026US 12,543,834 B2Japham Group Limited
- Hair styler including hinged arms having twisted hair contact surfaces26 Aug 2025US 12,396,538 B2Spectrum Brands, Inc.
- Hair styler including hinged arms having twisted hair contact surfaces25 Jun 2024US 12,016,443 B2Spectrum Brands, Inc.
- Hair styling device23 Apr 2024US 11,963,596 B2Japham Group Limited
- Angle deflection type twisted hair styling device14 Mar 2023US 11,602,207 B2Spectrum Brands, Inc.
- Hair styler including hinged arms having twisted hair contact surfaces12 Sep 2024US 2024/0298766 A1Spectrum Brands, Inc.
- Hair styling device27 Jun 2024US 2024/0206611 A1Japham Group Limited
- Angle deflection type twisted hair styling device22 Jun 2023US 2023/0189954 A1Spectrum Brands, Inc.
- Hair styling device13 Oct 2022US 2022/0322802 A1Japham Group Limited
- Hair styler including hinged arms having twisted hair contact surfaces14 Apr 2022US 2022/0110428 A1Spectrum Brands, Inc.
Most cited
By later US patents
- Hair iron for straight permanent31US 5,934,293 ACreate Co., Ltd. · 1999
- Hair curling iron and shaping tool10US 7,044,139 B2Hometek International Ltd. · 2006
- Heating hair curler9US 7,082,949 B2Conair Corporation · 2006
- Decreasing amplitude hair-waving apparatus and method8US 6,615,847 B1Volumaster AB · 2003
- Hair crimper (local heating)6US 8,110,778 B2Dickson Industrial Co., Ltd. · 2012