A47L 15/44
Devices for adding cleaning agents
Official title: Devices for adding cleaning agents; {Devices for dispensing cleaning agents, rinsing aids or deodorants}
A47L15/44 (Devices for adding cleaning agents) appears on 740 US grants and 806 published applications in this corpus.
Search patents in A47L- Granted patents
- 740
- Published applications
- 806
- Assignees
- 226
- Inventors
- 1,500
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 7 | 0 |
| 1980 | 9 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 9 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 8 | 0 |
| 1989 | 9 | 0 |
| 1990 | 5 | 0 |
| 1991 | 10 | 0 |
| 1992 | 8 | 0 |
| 1993 | 14 | 0 |
| 1994 | 8 | 0 |
| 1995 | 16 | 0 |
| 1996 | 12 | 0 |
| 1997 | 11 | 0 |
| 1998 | 13 | 0 |
| 1999 | 7 | 0 |
| 2000 | 8 | 0 |
| 2001 | 8 | 0 |
| 2002 | 8 | 8 |
| 2003 | 3 | 12 |
| 2004 | 9 | 24 |
| 2005 | 12 | 27 |
| 2006 | 9 | 24 |
| 2007 | 10 | 18 |
| 2008 | 4 | 18 |
| 2009 | 11 | 31 |
| 2010 | 16 | 43 |
| 2011 | 13 | 37 |
| 2012 | 24 | 24 |
| 2013 | 21 | 28 |
| 2014 | 32 | 37 |
| 2015 | 19 | 26 |
| 2016 | 31 | 27 |
| 2017 | 30 | 37 |
| 2018 | 27 | 46 |
| 2019 | 34 | 48 |
| 2020 | 26 | 45 |
| 2021 | 34 | 44 |
| 2022 | 39 | 38 |
| 2023 | 36 | 31 |
| 2024 | 34 | 48 |
| 2025 | 33 | 36 |
| 2026 | 30 | 49 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A47L 15/4418In the form of liquids197
- A47L 15/4463Multi-dose dispensing arrangements166
- A47L 15/4436In the form of a detergent solution made by gradually dissolving a142
- A47L 15/449Metering controlling devices141
- A47L 15/4445Detachable devices128
- A47L 15/4409By tipping containers or opening their lids118
- A47L 15/4472Blister packaging or refill cartridges61
- A47L 15/4481Deodorants, perfumes or odor removals6
Recent patents
- Chemical dispenser having a motorized rotary diverter valve and method of using same22 Sep 2026US 12,741,256 B2Delaware Capital Formation, Inc.
- Dishwasher and dispenser8 Sep 2026US 12,727,736 B2Whirlpool Corporation
- Dishwasher28 Jul 2026US 12,690,744 B2LG Electronics Inc.
- Dishwasher7 Jul 2026US 12,672,756 B2LG Electronics Inc.
- Dishwasher2 Jun 2026US 12,642,419 B2Samsung Electronics Co., Ltd.
- Near-field antenna system for an appliance8 Oct 2026US 2026/0305909 A1Haier US Appliance Solutions, Inc.
- Washing method having discontinuous dispensing of washing liquor, and dishwasher10 Sep 2026US 2026/0262906 A1BSH Hausgeräte GmbH
- Dishwasher and rotating spray arm thereof20 Aug 2026US 2026/0240402 A1Whirlpool Corporation
- Washing agent dispenser for dishwashers30 Jul 2026US 2026/0215653 A1ELTEK S.p.A.
- Dishwasher30 Jul 2026US 2026/0215656 A1
Most cited
By later US patents
- Solid block chemical dispenser for cleaning systems168US 4,826,661 AEcolab Inc. · 1989
- Solid block chemical dispenser for cleaning systems156US 4,690,305 AEcolab Inc. · 1987
- Solid block detergent dispenser155US 4,426,362 AEconomics Laboratory, Inc. · 1984
- Solid block chemical dispenser for cleaning systems149US 4,687,121 AEcolab Inc. · 1987
- Dishwashing machine130US 5,331,986 ADaewoo Eelctronics Company, Ltd. · 1994