B66B 11/024
Ventilation systems
Official title: {Ventilation systems}
B66B11/024 (Ventilation systems) appears on 44 US grants and 61 published applications in this corpus.
Search patents in B66B- Granted patents
- 44
- Published applications
- 61
- Assignees
- 31
- Inventors
- 133
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 2 |
| 2006 | 1 | 2 |
| 2007 | 3 | 3 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 3 | 4 |
| 2011 | 0 | 2 |
| 2012 | 2 | 2 |
| 2013 | 3 | 3 |
| 2014 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 3 | 0 |
| 2017 | 1 | 3 |
| 2018 | 0 | 3 |
| 2019 | 1 | 6 |
| 2020 | 4 | 1 |
| 2021 | 2 | 6 |
| 2022 | 1 | 7 |
| 2023 | 1 | 3 |
| 2024 | 6 | 5 |
| 2025 | 2 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Presentation information generation device and presentation information generation method10 Feb 2026US 12,548,104 B2Mitsubishi Electric Corporation
- Elevator system with cabin divider3 Feb 2026US 12,540,053 B2Otis Elevator Company
- Elevator-based air quality sensing system for buildings2 Dec 2025US 12,487,002 B2Kone Corporation
- Protector for an elevator car7 Jan 2025US 12,187,578 B2Otis Elevator Company
- Elevator cab ventilation31 Dec 2024US 12,180,035 B2Otis Elevator Company
- Elevator cabin and elevator system comprising such a cabin11 Sep 2025US 2025/0282576 A1Wittur Holding GmbH
- Protector for an elevator car14 Nov 2024US 2024/0375914 A1Otis Elevator Company
- Presentation information generation device and presentation information generation method26 Sep 2024US 2024/0317543 A1Mitsubishi Electric Corporation
- Presentation information generation device and presentation information generation method5 Sep 2024US 2024/0296515 A1Mitsubishi Electric Corporation
- System and method for increasing fresh air flow inside an elevator cab20 Jun 2024US 2024/0199379 A1Clearway Air Solution, Inc.
Most cited
By later US patents
- Smoke and fire protection system for elevators27US 4,592,270 A1986
- System and method for germicidal sanitizing of an elevator or other enclosed structure22US 7,692,172 B2Sound Health Designs, LLC · 2010
- System and method for germicidal sanitizing of an elevator or other enclosed structure18US 8,680,496 B2Elevated Health Systems, LLC · 2014
- System and method for germicidal sanitizing of an elevator or other enclosed structure17US 8,097,861 B2Sound Health Designs, LLC · 2012
- Apparatus for ventilating the interior of high speed elevator cars13US 5,080,003 AInventio AG · 1992