E21D 9/1093
Devices for supporting, advancing or orientating the machine or the tool-carrier
Official title: {Devices for supporting, advancing or orientating the machine or the tool-carrier (measuring devices for guiding machines E21D9/003; anchoring in the borehole E21B4/18)}
E21D9/1093 (Devices for supporting, advancing or orientating the machine or the tool-carrier) appears on 110 US grants and 61 published applications in this corpus.
Search patents in E21D- Granted patents
- 110
- Published applications
- 61
- Assignees
- 70
- Inventors
- 302
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 2 |
| 2002 | 3 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 2 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 3 |
| 2015 | 3 | 3 |
| 2016 | 1 | 3 |
| 2017 | 1 | 8 |
| 2018 | 4 | 7 |
| 2019 | 6 | 4 |
| 2020 | 7 | 3 |
| 2021 | 0 | 4 |
| 2022 | 4 | 4 |
| 2023 | 3 | 5 |
| 2024 | 4 | 7 |
| 2025 | 8 | 1 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tunnel boring machine and method for tunneling using a tunnel boring machine29 Sep 2026US 12,747,665 B2Herrenknecht AG
- Tunnel tunneling system3 Mar 2026US 12,565,837 B2Ccteg Taiyuan Research Institute
- Cutting apparatus4 Nov 2025US 12,460,545 B2Sandvik Mining and Construction Oy
- Right-angle turning method for small-diameter TBM exploration adit excavation2 Sep 2025US 12,404,770 B2Powerchina Northwest Engineering Corporation Limited
- Rock-piercing flexible rock drilling robot and rock breaking method12 Aug 2025US 12,385,391 B2Central South University
- Excited-vibration disc-cutting rock-breaking device of front eccentric block3 Sep 2026US 2026/0258726 A1Taiyuan University of Science and Technology
- Travel device, tunnel boring machine, trailing car, transport vehicle, tunnel boring system, and movement method23 Jul 2026US 2026/0210247 A1Komatsu Ltd.
- Integrated rapid excavation equipment for rock roadways and method thereof28 May 2026US 2026/0146533 A1China University of Mining and Technology
- Tunnel boring machine for excavating semicircular-arched tunnels1 Jan 2026US 2026/0002445 A1Robbins Mining, Inc.
- Rotary digging drill and amphibious tunnel construction robot using same3 Apr 2025US 2025/0109689 A1Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
Most cited
By later US patents
- Mobile mining machine and method77US 4,548,442 AThe Robbins Company · 1985
- Portable earth boring machine with steering head38US 4,013,134 AThe Richmond Manufacturing Company · 1977
- Transport apparatus and method of forming same37US 5,205,612 AZ C Mines Pty. Ltd. · 1993
- Mobile mining machine having tilted swing axis and method36US 5,234,257 AThe Robbins Company · 1993
- Tunnel boring machine and method35US 5,890,771 A1999