B27M 3/12
Manufacture or reconditioning of specific semi-finished or finished articles: of railings, stairs
Official title: of railings, stairs, stair stringers, ladders, or parts thereof
B27M3/12 (Manufacture or reconditioning of specific semi-finished or finished articles: of railings, stairs) appears on 28 US grants and 13 published applications in this corpus.
Search patents in B27M- Granted patents
- 28
- Published applications
- 13
- Assignees
- 11
- Inventors
- 38
- Latest grant
- 14 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 2 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 3 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for manufacturing a folded panel, and a folded panel14 Jan 2025US 12,194,655 B2Unilin BV
- System and method for stair assembly and installation23 Jul 2019US 10,358,827 B1
- Method of forming three-dimensional decorative items1 May 2018US 9,956,657 B2Thermwood Corporation
- Hardwood stair tread overlay4 Feb 2014US 8,640,404 B2
- Mortise and tenon joinery of log members11 Sep 2012US 8,261,788 B2
- Method for manufacturing hardwood nosing29 May 2025US 2025/0170744 A1Espenson Furniture, LLC
- Method for manufacturing a folded panel, and a folded panel6 Mar 2025US 2025/0073948 A1Unilin BV
- Method for manufacturing a folded panel, and a folded panel5 Jan 2023US 2023/0001604 A1Flooring Industries Limited, Sarl
- Method of forming three-dimensional decorative items8 Feb 2018US 2018/0036847 A1Thermwood Corporation
- Hardwood stair tread overlay15 May 2014US 2014/0130430 A1
Most cited
By later US patents
- Methods of manufacturing curved staircases and staircases produced21US 5,347,774 A1994
- Step for a stairway and method for making same18US 5,531,048 APrimary Millwork · 1996
- Methods of manufacturing curved staircases and staircases produced14US 5,163,491 A1992
- Method and apparatus for forming curved handrails11US 4,960,137 AR.W. Investment Co. · 1990
- Router machine8US 5,592,793 AMerrick Machine Co. · 1997