A47L 5/38
Built-in suction cleaner installations, i.e. with fixed tube system to which, at
Official title: Built-in suction cleaner installations, i.e. with fixed tube system to which, at different stations, hoses can be connected
A47L5/38 (Built-in suction cleaner installations, i.e. with fixed tube system to which, at) appears on 327 US grants and 277 published applications in this corpus.
Search patents in A47L- Granted patents
- 327
- Published applications
- 277
- Assignees
- 132
- Inventors
- 466
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 8 | 0 |
| 1991 | 8 | 0 |
| 1992 | 7 | 0 |
| 1993 | 6 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 8 | 0 |
| 1999 | 9 | 0 |
| 2000 | 8 | 0 |
| 2001 | 7 | 2 |
| 2002 | 6 | 6 |
| 2003 | 7 | 5 |
| 2004 | 8 | 13 |
| 2005 | 2 | 15 |
| 2006 | 7 | 12 |
| 2007 | 6 | 18 |
| 2008 | 12 | 8 |
| 2009 | 5 | 6 |
| 2010 | 10 | 12 |
| 2011 | 5 | 5 |
| 2012 | 4 | 7 |
| 2013 | 4 | 7 |
| 2014 | 4 | 14 |
| 2015 | 10 | 11 |
| 2016 | 12 | 7 |
| 2017 | 12 | 13 |
| 2018 | 7 | 14 |
| 2019 | 12 | 31 |
| 2020 | 22 | 17 |
| 2021 | 10 | 11 |
| 2022 | 18 | 14 |
| 2023 | 12 | 7 |
| 2024 | 13 | 6 |
| 2025 | 6 | 9 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Surface cleaning apparatus8 Sep 2026US 12,727,731 B2Omachron Intellectual Property Inc.
- Sanitary tee having pipe hangers2 Jun 2026US 12,644,552 B1Vacuum Technologies, LLC
- System and method for centralized steam cleaning12 May 2026US 12,622,564 B2Clean Core LLC
- Power saving shutoff gate for a pneumatic scrap conveying system10 Mar 2026US 12,569,952 B2Power Flow Unlimited, LLC
- Surface cleaning apparatus24 Sep 2026US 2026/0283435 A1Omachron Intellectual Property Inc.
- Vehicle treatment arch with pressure differential indication system and tool engagement system2 Jul 2026US 2026/0188072 A1Vacuum Technologies, LLC
- Surface cleaning apparatus25 Jun 2026US 2026/0174304 A1Omachron Intellectual Property Inc.
- Surface cleaning apparatus25 Jun 2026US 2026/0174305 A1Omachron Intellectual Property Inc.
- Valve assembly modules for central vacuum systems and related methods29 Jan 2026US 2026/0026663 A1Hide-A-Hose of Washington LLC
Most cited
By later US patents
- Automatic machine and device for floor dusting439US 5,787,545 A1998
- Method for controlling a vacuum cleaner or a central vacuum cleaner133US 4,829,626 AAllaway Oy · 1989
- Central vacuum cleaner with detachable filter assembly109US 4,944,780 A1990
- Foot manipulated suction head and method for employing same89US 5,014,389 AConcept, Inc. · 1991
- Portable filtration unit80US 5,069,691 AAbatement Technologies, Inc. · 1991