E21D 23/0436
Means for inclining the base member of the support
Official title: {Means for inclining the base member of the support}
E21D23/0436 (Means for inclining the base member of the support) appears on 17 US grants and 6 published applications in this corpus.
Search patents in E21D- Granted patents
- 17
- Published applications
- 6
- Assignees
- 14
- Inventors
- 25
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 3 |
| 2024 | 2 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- External fluid bar for fluid driven cylinder4 Nov 2025US 12,460,546 B1
- Mining shield base lift methods12 Nov 2024US 12,138,721 B2
- Mining shield base lift wear pad1 Oct 2024US 12,103,124 B2
- Mining shield base lift apparatuses and methods3 Oct 2023US 11,772,209 B1Swanson Industries, Inc.
- Mining roof support frame with base skids lifting device13 Jan 2009US 7,476,058 B2DBT Bergbau-Service Gmbh
- Mining shield base lift methods21 Dec 2023US 2023/0405740 A1Swanson Industries, Inc.
- Mining shield base lift wear pad21 Dec 2023US 2023/0405741 A1Swanson Industries, Inc.
- Mining shield base lift apparatuses and methods26 Oct 2023US 2023/0339051 A1Swanson Industries, Inc.
- Advancing assembly and powered shield support herewith19 Jul 2012US 2012/0180467 A1Bucyrus Europe GmbH
- Mining roof support frame with base skids lifting device22 Mar 2007US 2007/0065236 A1DBT Bergbau-Service Gmbh
Most cited
By later US patents
- Mine roof supports11US 5,039,257 AGullick Dobson Limited · 1991
- Mine roof support assembly8US 4,940,363 AMeco Mining Equipment Limited · 1990
- Displaceable mine roof support assemblies6US 5,238,330 AWestfalia Becorit Industrietechnik GmbH · 1993
- Hydraulic shield support frame6US 5,743,679 ADBT Deutsche Bergbau-Technik GmbH · 1998
- Mine roof support5US 5,252,006 AWestfalia Becorit Industrietechnik GmbH · 1993