A47L 11/4088
Supply pumps
Official title: {Supply pumps; Spraying devices; Supply conduits}
A47L11/4088 (Supply pumps) appears on 1,170 US grants and 1,247 published applications in this corpus.
Search patents in A47L- Granted patents
- 1,170
- Published applications
- 1,247
- Assignees
- 353
- Inventors
- 1,945
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 3 | 0 |
| 1978 | 9 | 0 |
| 1979 | 12 | 0 |
| 1980 | 17 | 0 |
| 1981 | 4 | 0 |
| 1982 | 12 | 0 |
| 1983 | 9 | 0 |
| 1984 | 8 | 0 |
| 1985 | 11 | 0 |
| 1986 | 8 | 0 |
| 1987 | 6 | 0 |
| 1988 | 8 | 0 |
| 1989 | 13 | 0 |
| 1990 | 18 | 0 |
| 1991 | 13 | 0 |
| 1992 | 12 | 0 |
| 1993 | 7 | 0 |
| 1994 | 7 | 0 |
| 1995 | 11 | 0 |
| 1996 | 13 | 0 |
| 1997 | 23 | 0 |
| 1998 | 22 | 0 |
| 1999 | 14 | 0 |
| 2000 | 28 | 0 |
| 2001 | 22 | 10 |
| 2002 | 21 | 18 |
| 2003 | 23 | 25 |
| 2004 | 12 | 21 |
| 2005 | 8 | 30 |
| 2006 | 14 | 37 |
| 2007 | 13 | 24 |
| 2008 | 9 | 17 |
| 2009 | 12 | 24 |
| 2010 | 23 | 14 |
| 2011 | 17 | 16 |
| 2012 | 11 | 20 |
| 2013 | 26 | 20 |
| 2014 | 17 | 36 |
| 2015 | 25 | 45 |
| 2016 | 33 | 41 |
| 2017 | 31 | 41 |
| 2018 | 34 | 44 |
| 2019 | 40 | 104 |
| 2020 | 59 | 71 |
| 2021 | 71 | 96 |
| 2022 | 74 | 96 |
| 2023 | 88 | 102 |
| 2024 | 82 | 141 |
| 2025 | 57 | 90 |
| 2026 | 52 | 64 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Surface cleaning system, surface cleaning device and control method thereof22 Sep 2026US 12,740,638 B2Tineco Intelligent Technology Co., Ltd.
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- Residual-water-stain recovery method and apparatus, robot, and storage medium8 Oct 2026US 2026/0305897 A1Shenzhen Pudu Technology Co., Ltd.
- Extraction cleaner8 Oct 2026US 2026/0305903 A1BISSELL Inc.
- Stationary service appliance for a poly functional roaming device8 Oct 2026US 2026/0310224 A1AI Incorporated
- Floor cleaner with a low power mode1 Oct 2026US 2026/0294193 A1Techtronic Floor Care Technology Limited
- Cleaning device with an adjustable squeegee assembly24 Sep 2026US 2026/0283432 A1Wensch Holding B.V.
Most cited
By later US patents
- Mobile work robot system511US 5,959,423 AMinolta Co., Ltd. · 1999
- Autonomous surface cleaning robot for wet and dry cleaning295US 7,761,954 B2iRobot Corporation · 2010
- Autonomous surface cleaning robot for wet and dry cleaning257US 7,389,156 B2iRobot Corporation · 2008
- Upright extraction cleaning machine240US 6,131,237 ABISSELL Homecare, Inc. · 2000
- Running and working robot not susceptible to damage at a coupling unit between running unit and working unit218US 5,991,951 AMinolta Co., Ltd. · 1999