A47L 5/12
Structural features of suction cleaners: with power-driven air-pumps or air-compressors
Official title: with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
A47L5/12 (Structural features of suction cleaners: with power-driven air-pumps or air-compressors) appears on 4,337 US grants and 4,684 published applications in this corpus.
Search patents in A47L- Granted patents
- 4,337
- Published applications
- 4,684
- Assignees
- 851
- Inventors
- 5,731
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 15 | 0 |
| 1978 | 11 | 0 |
| 1979 | 10 | 0 |
| 1980 | 24 | 0 |
| 1981 | 6 | 0 |
| 1982 | 15 | 0 |
| 1983 | 16 | 0 |
| 1984 | 17 | 0 |
| 1985 | 18 | 0 |
| 1986 | 23 | 0 |
| 1987 | 45 | 0 |
| 1988 | 35 | 0 |
| 1989 | 46 | 0 |
| 1990 | 52 | 0 |
| 1991 | 52 | 0 |
| 1992 | 51 | 0 |
| 1993 | 47 | 0 |
| 1994 | 50 | 0 |
| 1995 | 39 | 0 |
| 1996 | 52 | 0 |
| 1997 | 49 | 0 |
| 1998 | 65 | 0 |
| 1999 | 71 | 0 |
| 2000 | 102 | 0 |
| 2001 | 95 | 39 |
| 2002 | 86 | 80 |
| 2003 | 84 | 87 |
| 2004 | 59 | 138 |
| 2005 | 51 | 134 |
| 2006 | 56 | 137 |
| 2007 | 79 | 148 |
| 2008 | 79 | 113 |
| 2009 | 69 | 140 |
| 2010 | 100 | 153 |
| 2011 | 94 | 117 |
| 2012 | 70 | 117 |
| 2013 | 117 | 123 |
| 2014 | 129 | 148 |
| 2015 | 129 | 144 |
| 2016 | 126 | 167 |
| 2017 | 138 | 288 |
| 2018 | 155 | 248 |
| 2019 | 251 | 329 |
| 2020 | 238 | 309 |
| 2021 | 221 | 300 |
| 2022 | 236 | 258 |
| 2023 | 249 | 289 |
| 2024 | 227 | 298 |
| 2025 | 170 | 208 |
| 2026 | 104 | 172 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Central vacuum system and inlet valves therefor6 Oct 2026US 12,751,587 B2H-P Products, Inc.
- Cleaning system and cleaning method6 Oct 2026US 12,751,590 B2Pixart Imaging Inc.
- Surface cleaning apparatus29 Sep 2026US 12,745,882 B2Omachron Intellectual Property Inc.
- Brushless motor29 Sep 2026US 12,749,941 B2Dyson Technology Limited
- Blowing suction device22 Sep 2026US 12,740,517 B2Positec Power Tools (Suzhou) Co., Ltd.
- Vacuum cleaner with two turbines, and operating method for same8 Oct 2026US 2026/0305892 A1Hilti Aktiengesellschaft
- Surface cleaning apparatus and docking station usable therewith8 Oct 2026US 2026/0305893 A1Omachron Intellectual Property Inc.
- User-prompted cleaning by autonomous vacuum8 Oct 2026US 2026/0305895 A1Matic Robots, Inc. (fka Matician, Inc.)
- Surface cleaning apparatus1 Oct 2026US 2026/0294184 A1Omachron Intellectual Property Inc.
- Surface cleaning apparatus1 Oct 2026US 2026/0294189 A1Omachron Intellectual Property Inc.
Most cited
By later US patents
- Air flow-producing device, such as a vacuum cleaner or a blower1,158US 7,712,182 B2Milwaukee Electric Tool Corporation · 2010
- Mobile robots and their control system575US 6,389,329 B12002
- Autonomous floor-cleaning robot453US 6,883,201 B2iRobot Corporation · 2005
- Automatic machine and device for floor dusting439US 5,787,545 A1998
- Cyclonic back-pack vacuum cleaner370US 5,267,371 AIona Appliances Inc. · 1993