B66B 13/28
Between car or cage and wells
Official title: between car or cage and wells
B66B13/28 (Between car or cage and wells) appears on 32 US grants and 37 published applications in this corpus.
Search patents in B66B- Granted patents
- 32
- Published applications
- 37
- Assignees
- 10
- Inventors
- 67
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 2 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 3 | 0 |
| 2014 | 2 | 3 |
| 2015 | 0 | 0 |
| 2016 | 2 | 3 |
| 2017 | 2 | 1 |
| 2018 | 1 | 4 |
| 2019 | 0 | 4 |
| 2020 | 2 | 6 |
| 2021 | 5 | 2 |
| 2022 | 2 | 2 |
| 2023 | 3 | 0 |
| 2024 | 1 | 2 |
| 2025 | 1 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Elevator door enforcer6 Oct 2026US 12,753,049 B2Ashby Elevator Safety Products, LLC
- Elevator sill clearance protection device and elevator car26 May 2026US 12,637,329 B2Otis Elevator Company
- Apron device, elevator car and method for protecting from falling into elevator shaft17 Jun 2025US 12,330,912 B2Kone Corporation
- Elevator system having a car apron supportable on guide rails5 Mar 2024US 11,919,744 B2Inventio AG
- Gap-reducing sill assembly for an elevator car19 Sep 2023US 11,760,606 B2Otis Elevator Company
- Elevator door enforcer16 Apr 2026US 2026/0103362 A1Ashby Elevator Safety Products, LLC
- Elevator car with retractable apron and elevator system comprising such an elevator car20 Nov 2025US 2025/0353705 A1Otis Elevator Company
- Elevator Plate Assembly6 Mar 2025US 2025/0074748 A1Stiltz Limited
- Apron device, elevator car and method for protecting from falling into elevator shaft10 Oct 2024US 2024/0336456 A1Kone Corporation
- Elevator sill clearance protection device and elevator car22 Aug 2024US 2024/0279026 A1Otis Elevator Company
Most cited
By later US patents
- Pit-less elevator9US 6,095,288 AOtis Elevator Company · 2000
- Toe guard for an elevator7US 5,251,726 AKone Elevator GmbH · 1993
- Elevator arrangement5US 7,350,627 B2Kone Corporation · 2008
- Elevator life safety gate4US 8,469,155 B2Vertical Motion Innovations, LLC · 2013
- Toe guard assembly for an elevator system4US 9,227,817 B2Otis Elevator Company · 2016