E21D 9/003
Arrangement of measuring or indicating devices for use during driving of tunnels
Official title: {Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines}
E21D9/003 (Arrangement of measuring or indicating devices for use during driving of tunnels) appears on 127 US grants and 121 published applications in this corpus.
Search patents in E21D- Granted patents
- 127
- Published applications
- 121
- Assignees
- 106
- Inventors
- 633
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 3 |
| 2009 | 1 | 1 |
| 2010 | 1 | 5 |
| 2011 | 1 | 2 |
| 2012 | 2 | 1 |
| 2013 | 2 | 2 |
| 2014 | 4 | 4 |
| 2015 | 5 | 3 |
| 2016 | 2 | 4 |
| 2017 | 0 | 5 |
| 2018 | 4 | 1 |
| 2019 | 6 | 6 |
| 2020 | 3 | 8 |
| 2021 | 5 | 7 |
| 2022 | 9 | 17 |
| 2023 | 12 | 16 |
| 2024 | 16 | 12 |
| 2025 | 16 | 6 |
| 2026 | 9 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tunnel boring machine and method for tunneling using a tunnel boring machine29 Sep 2026US 12,747,665 B2Herrenknecht AG
- Advanced geological prediction method and system based on perception while drilling11 Aug 2026US 12,704,064 B2Shandong University
- Performance monitoring system for disc cutter of tunnel boring machine4 Aug 2026US 12,698,710 B2NK Photonics Ltd.
- Tunnel excavation apparatus to which spectroscopic analysis method is applied16 Jun 2026US 12,655,760 B2Korea Radioactive Waste Agency
- Apparatus, rock drilling rig and drilling method5 May 2026US 12,618,290 B2Sandvik Mining and Construction Oy
- Method for fully-automatic fine geological detection by using array acoustic waves and apparatus therefor carried on shield machine20 Aug 2026US 2026/0243911 A1Shandong University
- Intelligent adaptive monitoring and control system for high-pressure jet excavation23 Jul 2026US 2026/0210246 A1Chongqing University
- Advanced detection apparatus and method for tunnel boring machine based on seismic waves from controllable seismic source16 Jul 2026US 2026/0201801 A1Shandong University
- Advanced detection method and system for tunnel boring machine based on seismic waves from controllable seismic source and rock breaking seismic source16 Jul 2026US 2026/0202567 A1Shandong University
- Three-dimensional reverse-time extrapolation method for seismic waves and high-resolution tunnel seismic advance prediction method9 Jul 2026US 2026/0194674 A1Chongqing Jiaotong University
Most cited
By later US patents
- Automated guided apparatus suitable for toping applications88US 6,349,249 B1Inco Limited · 2002
- Golf club shaft and set of golf clubs73US 4,165,874 APepsiCo, Inc. · 1979
- Apparatus for detecting position of underground excavator and magnetic field producing cable73US 5,240,350 AKabushiki Kaisha Komatsu Seisakusho · 1993
- Guide beam direction setting apparatus46US 5,936,721 ATopcon Corporation · 1999
- Automatic control system and method for a machine used for excavating drifts, tunnels, stopes, or caverns43US 5,938,288 AHDRK Mining Research Limited · 1999