A47L 11/4038
Disk shaped surface treating tools
Official title: {Disk shaped surface treating tools}
A47L11/4038 (Disk shaped surface treating tools) appears on 657 US grants and 628 published applications in this corpus.
Search patents in A47L- Granted patents
- 657
- Published applications
- 628
- Assignees
- 274
- Inventors
- 1,269
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 9 | 0 |
| 1978 | 13 | 0 |
| 1979 | 11 | 0 |
| 1980 | 12 | 0 |
| 1981 | 5 | 0 |
| 1982 | 10 | 0 |
| 1983 | 10 | 0 |
| 1984 | 5 | 0 |
| 1985 | 7 | 0 |
| 1986 | 7 | 0 |
| 1987 | 14 | 0 |
| 1988 | 15 | 0 |
| 1989 | 8 | 0 |
| 1990 | 7 | 0 |
| 1991 | 8 | 0 |
| 1992 | 7 | 0 |
| 1993 | 10 | 0 |
| 1994 | 8 | 0 |
| 1995 | 15 | 0 |
| 1996 | 12 | 0 |
| 1997 | 10 | 0 |
| 1998 | 14 | 0 |
| 1999 | 12 | 0 |
| 2000 | 12 | 0 |
| 2001 | 15 | 2 |
| 2002 | 6 | 5 |
| 2003 | 6 | 9 |
| 2004 | 4 | 12 |
| 2005 | 5 | 21 |
| 2006 | 5 | 13 |
| 2007 | 12 | 9 |
| 2008 | 4 | 8 |
| 2009 | 6 | 10 |
| 2010 | 6 | 9 |
| 2011 | 8 | 5 |
| 2012 | 7 | 7 |
| 2013 | 8 | 16 |
| 2014 | 9 | 13 |
| 2015 | 8 | 23 |
| 2016 | 13 | 22 |
| 2017 | 16 | 25 |
| 2018 | 22 | 24 |
| 2019 | 18 | 43 |
| 2020 | 23 | 36 |
| 2021 | 29 | 53 |
| 2022 | 23 | 54 |
| 2023 | 40 | 65 |
| 2024 | 54 | 58 |
| 2025 | 26 | 45 |
| 2026 | 35 | 41 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Floor cleaning machine8 Sep 2026US 12,727,730 B2Hako GmbH
- Cleaner25 Aug 2026US 12,714,277 B2LG Electronics Inc.
- Robot cleaner and robot cleaner system1 Oct 2026US 2026/0294196 A1LG Electronics Inc.
- Cleaner and cleaner control method24 Sep 2026US 2026/0283434 A1LG Electronics Inc.
- Robotic vacuum cleaner, docking station, and cleaning system including the same17 Sep 2026US 2026/0272250 A1Samsung Electronics Co., Ltd.
- Automated cleaning implement evaluation systems and methods for floor treatment machines10 Sep 2026US 2026/0262897 A1Nilfisk A/S
- Cleaning base station and cleaning method for wiping and mopping member10 Sep 2026US 2026/0262901 A1Dreame Innovation Technology (Suzhou) Co., Ltd.
Most cited
By later US patents
- Mobile work robot system511US 5,959,423 AMinolta Co., Ltd. · 1999
- Cleaning robot276US 5,815,880 AMinolta Co., Ltd. · 1998
- Service robot for the automatic suction of dust from floor surfaces227US 6,370,453 B22002
- 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
- Household appliance having plural coaxially rotatable or parallel linearly movable heads or tools177US 6,032,313 A2000