E21D 9/093
Control of the driving shield
Official title: Control of the driving shield {, e.g. of the hydraulic advancing cylinders (arrangement of measuring or indicating devices for use during driving of tunnels E21D9/003)}
E21D9/093 (Control of the driving shield) appears on 42 US grants and 22 published applications in this corpus.
Search patents in E21D- Granted patents
- 42
- Published applications
- 22
- Assignees
- 36
- Inventors
- 121
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
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| 1990 | 3 | 0 |
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| 1992 | 0 | 0 |
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| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 3 |
| 2003 | 2 | 1 |
| 2004 | 0 | 2 |
| 2005 | 2 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 4 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 3 |
| 2023 | 2 | 1 |
| 2024 | 2 | 0 |
| 2025 | 2 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tunnel excavation apparatus to which spectroscopic analysis method is applied16 Jun 2026US 12,655,760 B2Korea Radioactive Waste Agency
- Warning device for a mining control module25 Feb 2025US 12,234,731 B2Caterpillar Inc.
- System and method for simultaneous excavation and segment erection of TBM by thrust shell28 Jan 2025US 12,209,498 B2
- Method and apparatus for controlling stratum deformation in shield construction process, and non-volatile storage medium12 Mar 2024US 11,927,098 B2China Railway 14th Bureau Group Corporation Limited
- Propulsion control device of tunnel boring machine for 3D printing a tunnel16 Jan 2024US 11,873,718 B1Zhejiang University City College
- Steering control device of shield tbm and steering control method using the same7 May 2026US 2026/0125980 A1Korea Institute of Civil Engineering and Building Technology
- Tunnel excavation apparatus to which spectroscopic analysis method is applied22 May 2025US 2025/0163805 A1Korea Radioactive Waste Agency
- System and method for simultaneous excavation and segment erection of TBM by Thrust shell19 Oct 2023US 2023/0332504 A1Jamal Rostami Engineering Services LLC
- Method and Apparatus for Controlling Stratum Deformation in Shield Construction Process, and Non-volatile Storage Medium15 Dec 2022US 2022/0397036 A1China Railway 14th Bureau Group Corporation Limited
- Warning device for a mining control module24 Nov 2022US 2022/0372877 A1Caterpillar Global Mining Europe GmbH
Most cited
By later US patents
- Method and system for mining hydrocarbon-containing materials34US 6,929,330 B2Oil Sands Underground Mining, Inc. · 2005
- Shield tunneling system capable of electromagnetically detecting and displaying conditions of ground therearound31US 4,774,470 AMitsui Engineering & Shipbuilding Co., Ltd. · 1988
- Method and system for mining hydrocarbon-containing materials29US 6,554,368 B2Oil Sands Underground Mining, Inc. · 2003
- Shield type hydraulic tunnel boring machine26US 4,167,290 ATekken Construction Co., Ltd. · 1979
- Method and apparatus for continuously boring and lining tunnels and other like structures26US 4,793,736 A1988