B66B 9/0846
Guide rail
Official title: {Guide rail (B66B9/0807 takes precedence)}
B66B9/0846 (Guide rail) appears on 46 US grants and 58 published applications in this corpus.
Search patents in B66B- Granted patents
- 46
- Published applications
- 58
- Assignees
- 31
- Inventors
- 98
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 2 | 2 |
| 2005 | 0 | 2 |
| 2006 | 0 | 4 |
| 2007 | 3 | 3 |
| 2008 | 2 | 2 |
| 2009 | 4 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 4 |
| 2013 | 2 | 0 |
| 2014 | 0 | 1 |
| 2015 | 3 | 3 |
| 2016 | 1 | 3 |
| 2017 | 3 | 3 |
| 2018 | 1 | 0 |
| 2019 | 1 | 4 |
| 2020 | 5 | 7 |
| 2021 | 4 | 3 |
| 2022 | 3 | 4 |
| 2023 | 5 | 2 |
| 2024 | 1 | 5 |
| 2025 | 3 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Stair lifting chair1 Apr 2025US 12,264,044 B1Merits Health Products Co., Ltd.
- Electric stair lift2 Apr 2024US 11,945,692 B1
- Stairlift5 Dec 2023US 11,834,302 B2Bruno Independent Living Aids, Inc.
- Rail segment system for modular stairlifts1 Oct 2026US 2026/0296834 A1LeafFilter North, LLC
- Cable tensioning system for modular stairlifts1 Oct 2026US 2026/0296835 A1LeafFilter North, LLC
- Electric Stair Lift17 Jul 2025US 2025/0230017 A1
- Stair lift systems and methods for assembling, installing, and using such systems19 Dec 2024US 2024/0417218 A1Leaf Home Safety Solutions, LLC
- Method to determine a speed profile for a stairlift29 Aug 2024US 2024/0286870 A1TK Home Solutions B.V.
Most cited
By later US patents
- Stair lift device18US 7,225,899 B2Rutherford Independence Limited · 2007
- Chair with movable arms and tables sections18US 8,419,124 B2Hill-Rom Services, Inc. · 2013
- Home care equipment system17US 7,537,069 B2Hill-Rom Services, Inc. · 2009
- Stairlift11US 5,105,914 A1992
- Flexible guide rail and method for manufacturing same10US 5,066,834 A1991