A47L 2501/20
Spray nozzles or spray arms
A47L2501/20 (Spray nozzles or spray arms) appears on 115 US grants and 152 published applications in this corpus.
Search patents in A47L- Granted patents
- 115
- Published applications
- 152
- Assignees
- 37
- Inventors
- 223
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 3 |
| 2007 | 0 | 5 |
| 2008 | 0 | 0 |
| 2009 | 0 | 3 |
| 2010 | 3 | 2 |
| 2011 | 2 | 2 |
| 2012 | 1 | 7 |
| 2013 | 2 | 2 |
| 2014 | 4 | 7 |
| 2015 | 4 | 11 |
| 2016 | 3 | 12 |
| 2017 | 7 | 12 |
| 2018 | 13 | 13 |
| 2019 | 11 | 6 |
| 2020 | 6 | 11 |
| 2021 | 8 | 12 |
| 2022 | 14 | 18 |
| 2023 | 9 | 12 |
| 2024 | 13 | 6 |
| 2025 | 12 | 4 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Conveyor warewasher and method for operating a conveyor warewasher10 Feb 2026US 12,543,920 B2Illinois Tool Works Inc.
- Dishwasher2 Dec 2025US 12,484,755 B2LG Electronics Inc.
- Domestic dishwasher and method4 Nov 2025US 12,458,196 B2BSH Hausgeräte GmbH
- Dishwasher and method for controlling same21 Oct 2025US 12,446,754 B2Samsung Electronics Co., Ltd.
- Control method for dishwasher and dishwasher30 Sep 2025US 12,426,767 B2Foshan Shunde Midea Washing Appliances Manufacturing Co., Ltd.
- Pan cleaner machine, controller, cleaning modules, and method of operation and use20 Aug 2026US 2026/0240401 A1Food Machinery Engineering, LMTD
- Direct spray chemical application system for machine warewashing applications2 Jul 2026US 2026/0182816 A1Ecolab USA Inc.
- Dishwasher with a tank cleaning system23 Apr 2026US 2026/0108129 A1Illinois Tool Works Inc.
- Pan cleaning system and improved cleaning stations utilizng modular swing arm cleaning sections11 Dec 2025US 2025/0375086 A1Food Machinery Engineering, LMTD
- Dishwasher with wirelessly powered imaging device and communication17 Apr 2025US 2025/0120563 A1Midea Group Co., Ltd.
Most cited
By later US patents
- Method for controlling zonal washing in a dishwasher40US 8,932,411 B2Whirlpool Corporation · 2015
- Dishwasher with controlled rotation of lower spray arm37US 9,220,393 B2Whirlpool Corporation · 2015
- Dishwasher with combined liquid and air sprayers18US 10,524,634 B2Midea Group Co., Ltd. · 2020
- Arrangement for a dishwasher for creating a wash zone with selectable position16US 10,105,031 B2Electrolux Appliances Aktiebolag · 2018
- Snap latch assembly for a dishwasher16US 5,810,403 AGeneral Electric Company · 1998