A47L 5/20
With bellows, diaphragms or pistons
Official title: with bellows, diaphragms or pistons
A47L5/20 (With bellows, diaphragms or pistons) appears on 3 US grants and 7 published applications in this corpus.
Search patents in A47L- Granted patents
- 3
- Published applications
- 7
- Assignees
- 3
- Inventors
- 11
- Latest grant
- 3 Nov 2015
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
By publication year.
Recent patents
- Cleaning device with aerodynamic oscillator3 Nov 2015US 9,173,535 B2Koninklijke Philips N. V.
- Vacuum cleaning device, comprising a unit with a movable surface for generating an oscillating airflow14 Oct 2014US 8,857,013 B2Koninklijke Philips N. V.
- Vacuum cleaners especially quiet vacuum cleaners, pumps, and engines25 Sep 2012US 8,272,854 B2
- Filter cleaning unit, vacuum cleaner and method for cleaning a filter in a vacuum cleaner13 Mar 2025US 2025/0082154 A1Hilti Aktiengesellschaft
- Vacuum drill dust extractor21 Mar 2024US 2024/0090719 A1
- Cleaning device with aerodynamic oscillator25 Dec 2014US 2014/0373308 A1Koninklijke Philips N. V.
- Vacuum cleaning device, comprising a unit with a movable surface for generating an oscillating airflow27 Jun 2013US 2013/0160230 A1Koninklijke Philips Electronics N. V.
- Rotary engines30 Nov 2006US 2006/0265835 A1
Most cited
By later US patents