E21D 15/48
Chocks or the like
E21D15/48 (Chocks or the like) appears on 57 US grants and 49 published applications in this corpus.
Search patents in E21D- Granted patents
- 57
- Published applications
- 49
- Assignees
- 42
- Inventors
- 106
- Latest grant
- 18 Jul 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 2 |
| 2003 | 3 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 3 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 2 | 6 |
| 2011 | 3 | 4 |
| 2012 | 2 | 3 |
| 2013 | 1 | 6 |
| 2014 | 5 | 3 |
| 2015 | 2 | 3 |
| 2016 | 2 | 1 |
| 2017 | 1 | 3 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 3 |
| 2021 | 3 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pumpable crib bag18 Jul 2023US 11,702,935 B2FCI Holdings Delaware, Inc.
- Mine roof support, pre-installation assembly for same, and method of installation5 Oct 2021US 11,136,887 B2Burrell Mining Products, Inc.
- Method of recovering room-and-pillar coal pillar by using external replacement supports1 Jun 2021US 11,021,954 B2China University of Mining and Technology
- Mine roof support5 Jan 2021US 10,883,366 B2Crosscut Enterprises LLC
- Mine roof support, pre-installation assembly for same, and method of installation3 Nov 2020US 10,822,948 B2Burrell Mining Products, Inc.
- Filling and support container23 Jul 2026US 2026/0210249 A1Dsi Schaum Chemie Sp.Z O.O.
- Pumpable crib bag assembly20 Nov 2025US 2025/0354491 A1ABC Industries, Inc.
- Mine roof support cribs19 Jun 2025US 2025/0198287 A1Mine Timber Technology (Int) Pty Ltd
- Self-stabilizing integrally-molded pillar filling structure for underground mines8 May 2025US 2025/0146414 A1China University of Mining and Technology
- Pumpable Crib Bag24 Mar 2022US 2022/0090501 A1FCI Holdings Delaware, Inc.
Most cited
By later US patents
- Load support48US 5,143,340 AFosroc International Limited · 1992
- Method and an apparatus for producing fabric-reinforced lining supports or slender supporting structural units39US 4,983,077 AGebhardt & Koenig-Gesteins- und Tiefbau GmbH · 1991
- Yieldable confined core mine roof support32US 5,308,196 AThe Coastal Corporation · 1994
- Borehole aerostatic ground support system25US 4,072,015 AThe United States of America as represented by the Secretary of the Interior · 1978
- Mining support pillars17US 4,770,564 A1988