A45D 24/28
With piston pump or other types of pumps
Official title: with piston pump {or other types of pumps}
A45D24/28 (With piston pump or other types of pumps) appears on 54 US grants and 82 published applications in this corpus.
Search patents in A45D- Granted patents
- 54
- Published applications
- 82
- Assignees
- 32
- Inventors
- 137
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 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 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 5 | 2 |
| 2003 | 2 | 1 |
| 2004 | 0 | 3 |
| 2005 | 0 | 5 |
| 2006 | 4 | 5 |
| 2007 | 2 | 2 |
| 2008 | 0 | 1 |
| 2009 | 2 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 5 |
| 2014 | 1 | 4 |
| 2015 | 2 | 3 |
| 2016 | 1 | 1 |
| 2017 | 0 | 4 |
| 2018 | 0 | 3 |
| 2019 | 1 | 12 |
| 2020 | 2 | 4 |
| 2021 | 1 | 2 |
| 2022 | 8 | 5 |
| 2023 | 1 | 5 |
| 2024 | 4 | 4 |
| 2025 | 5 | 7 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Grey-hair detection and treatment system16 Jun 2026US 12,653,290 B2L'oreal
- Sprayer hairbrush9 Jun 2026US 12,648,635 B1Levco LLC
- Scalp applicator26 May 2026US 12,635,777 B1
- Healthcare comb10 Mar 2026US 12,569,047 B2Shanghai Yingshan Environmental Protection Technology Co., Ltd
- Handheld hair product dispenser2 Sep 2025US 12,402,706 B1
- Combination comb, bottle, and hair pick for styling hair27 Aug 2026US 2026/0248259 A1
- Wireless electric hair-coloring device, and coloring method using same16 Jul 2026US 2026/0198673 A1Entertake Co., Ltd.
- Hair dye developer packaging30 Apr 2026US 2026/0114571 A1L'oreal
- Animal Bathing and Grooming Glove and Grooming Method25 Dec 2025US 2025/0386799 A1
- Hair straightening comb with electric-heating and atomization31 Jul 2025US 2025/0241423 A1
Most cited
By later US patents
- Cosmetic article having improved dispensing structure69US 6,533,482 B12003
- Hair treating liquid applicator45US 3,961,635 AShiseido Company, Ltd. · 1976
- Hair coloring applicator37US 5,937,865 A1999
- Hair fluid applicator and method32US 5,060,679 A1991
- Pump container using laminated bottle with peelable inner layer26US 6,467,653 B1Taisei Kako Co., Ltd. · 2002