A47L 9/122
Flat
Official title: {flat}
A47L9/122 (Flat) appears on 587 US grants and 765 published applications in this corpus.
Search patents in A47L- Granted patents
- 587
- Published applications
- 765
- Assignees
- 168
- Inventors
- 883
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 9 | 0 |
| 2000 | 9 | 0 |
| 2001 | 15 | 7 |
| 2002 | 11 | 12 |
| 2003 | 9 | 10 |
| 2004 | 7 | 22 |
| 2005 | 4 | 24 |
| 2006 | 9 | 18 |
| 2007 | 19 | 22 |
| 2008 | 16 | 15 |
| 2009 | 13 | 14 |
| 2010 | 16 | 30 |
| 2011 | 11 | 12 |
| 2012 | 6 | 16 |
| 2013 | 13 | 19 |
| 2014 | 21 | 23 |
| 2015 | 15 | 11 |
| 2016 | 13 | 12 |
| 2017 | 19 | 68 |
| 2018 | 21 | 39 |
| 2019 | 57 | 58 |
| 2020 | 51 | 70 |
| 2021 | 27 | 45 |
| 2022 | 52 | 41 |
| 2023 | 43 | 43 |
| 2024 | 40 | 58 |
| 2025 | 22 | 45 |
| 2026 | 14 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Surface cleaning apparatus8 Sep 2026US 12,727,731 B2Omachron Intellectual Property Inc.
- Evacuation station7 Jul 2026US 12,672,747 B2iRobot Corporation
- Evacuation station for a mobile floor cleaning robot16 Jun 2026US 12,653,362 B2Omachron Intellectual Property Inc.
- Handheld vacuum assembly for the capture and collection of insects9 Jun 2026US 12,648,554 B2
- Crematory vacuum cleaner19 May 2026US 12,631,328 B2
- Vacuum cleaner having two stages of spiral separation structures1 Oct 2026US 2026/0294191 A1
- Hand carryable surface cleaning apparatus24 Sep 2026US 2026/0283417 A1Omachron Intellectual Property Inc.
- Surface cleaning apparatus24 Sep 2026US 2026/0283435 A1Omachron Intellectual Property Inc.
- Separation system for a vacuum cleaner20 Aug 2026US 2026/0240389 A1Dyson Technology Limited
- Vacuum cleaner20 Aug 2026US 2026/0240393 A1
Most cited
By later US patents
- Air filter arrangement having first and second filter media dividing a housing and methods343US 6,210,469 B1Donaldson Company, Inc. · 2001
- Vacuum filter257US 5,230,722 AAmway Corporation · 1993
- Cleanable high efficiency filter media structure and applications for use231US 7,008,465 B2Donaldson Company, Inc. · 2006
- Dual filter wet/dry hand-held vacuum cleaner227US 6,434,785 B1Headwaters Research & Development, Inc. · 2002
- Handheld cleaning appliance185US 7,931,716 B2Dyson Technology Limited · 2011