A46D 1/0246
Hollow bristles
Official title: {Hollow bristles}
A46D1/0246 (Hollow bristles) appears on 39 US grants and 40 published applications in this corpus.
Search patents in A46D- Granted patents
- 39
- Published applications
- 40
- Assignees
- 28
- Inventors
- 75
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 0 |
| 2003 | 1 | 5 |
| 2004 | 1 | 0 |
| 2005 | 3 | 3 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 5 |
| 2016 | 1 | 0 |
| 2017 | 0 | 4 |
| 2018 | 1 | 3 |
| 2019 | 4 | 1 |
| 2020 | 2 | 2 |
| 2021 | 0 | 2 |
| 2022 | 1 | 2 |
| 2023 | 1 | 2 |
| 2024 | 0 | 2 |
| 2025 | 3 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heated brush with hollow bristles for air and light application4 Aug 2026US 12,697,504 B2L'ange Hair, Inc.
- Full-automatic pet cleaning machine, and control method and control system of the full-automatic pet cleaning machine21 Apr 2026US 12,604,866 B2Allviews Technology LLC
- Surgical cleaning device18 Nov 2025US 12,471,697 B2Heraeus Medical GmbH
- Hair tools with additives23 Sep 2025US 12,419,403 B2Conair Corporation
- Handheld hair product dispenser2 Sep 2025US 12,402,706 B1
- Vacuum Brush23 Jul 2026US 2026/0206958 A1
- Device for applying a liquid material to hair and detangling the hair7 May 2026US 2026/0123727 A1
- Full-automatic pet cleaning machine, and control method and control system of the full-automatic pet cleaning machine22 Jan 2026US 2026/0020541 A1Allviews Technology LLC
- Applicator for cosmetic product, in particular mascara, and associated applicator assembly26 Jun 2025US 2025/0204675 A1Albea Services
- Heated brush with hollow bristles for air and light application6 Mar 2025US 2025/0073488 A1L'ange Hair, Inc.
Most cited
By later US patents
- Bristle for a toothbrush, particularly for an electric toothbrush, and method for its manufacture80US 6,871,373 B2Braun GmbH · 2005
- Mascara brush72US 4,733,425 ASanderson-MacLeod, Inc. · 1988
- Tri- or tetra-locular paint brush bristles44US 4,279,053 AE. I. Du Pont de Nemours and Company · 1981
- Method and device for producing bristle products and bristle products44US 7,503,093 B2Geka Brush GmbH · 2009
- Application device and system having helical-grooved bristles, and method of applying a product34US 6,390,708 B1L'oreal · 2002