A47L 15/22
Rotary spraying devices
A47L15/22 (Rotary spraying devices) appears on 590 US grants and 635 published applications in this corpus.
Search patents in A47L- Granted patents
- 590
- Published applications
- 635
- Assignees
- 108
- Inventors
- 810
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 8 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 8 | 0 |
| 1996 | 5 | 0 |
| 1997 | 9 | 0 |
| 1998 | 9 | 0 |
| 1999 | 6 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 4 | 6 |
| 2003 | 3 | 5 |
| 2004 | 4 | 6 |
| 2005 | 4 | 11 |
| 2006 | 3 | 6 |
| 2007 | 2 | 10 |
| 2008 | 5 | 11 |
| 2009 | 5 | 11 |
| 2010 | 10 | 21 |
| 2011 | 16 | 16 |
| 2012 | 12 | 23 |
| 2013 | 10 | 37 |
| 2014 | 16 | 32 |
| 2015 | 17 | 20 |
| 2016 | 35 | 24 |
| 2017 | 35 | 62 |
| 2018 | 41 | 53 |
| 2019 | 46 | 43 |
| 2020 | 51 | 41 |
| 2021 | 34 | 42 |
| 2022 | 51 | 38 |
| 2023 | 30 | 26 |
| 2024 | 25 | 33 |
| 2025 | 23 | 19 |
| 2026 | 24 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dishwasher29 Sep 2026US 12,745,891 B2LG Electronics Inc.
- Dishwasher1 Sep 2026US 12,721,494 B2LG Electronics Inc.
- Water flow system for washer, and washer1 Sep 2026US 12,721,496 B2Ningbo Fotile Kitchen Ware Co., Ltd.
- Dishwasher including heat pump apparatus28 Jul 2026US 12,690,746 B2LG Electronics Inc.
- Dish rack and wash assembly for dishwasher28 Jul 2026US RE50,967 E1Whirlpool Corporation
- Dishwasher8 Oct 2026US 2026/0305907 A1Whirlpool Corporation
- Dishwasher appliance and a freeze prevention operation1 Oct 2026US 2026/0294202 A1Haier US Appliance Solutions, Inc.
- Dishwasher with a dish rack1 Oct 2026US 2026/0294207 A1Whirlpool Corporation
- Container washing machine24 Sep 2026US 2026/0283442 A1Guangzhou Qingkuai Innovation Technology Co., Ltd.
- Spray arm monitoring for a dishwasher appliance17 Sep 2026US 2026/0272255 A1Haier US Appliance Solutions, Inc.
Most cited
By later US patents
- Multiple wash zone dishwasher194US 7,594,513 B2Whirlpool Corporation · 2009
- Multiple wash zone dishwasher153US 7,445,013 B2Whirlpool Corporation · 2008
- Dishwasher having rotating zone wash sprayer121US 7,523,758 B2Whirlpool Corporation · 2009
- Dishwasher113US 5,470,142 AFisher & Paykel Limited · 1995
- Unitary dishwasher104US 4,146,405 A1979