E21B 7/205
Without earth removal
Official title: {without earth removal (E21B7/30 takes precedence)}
E21B7/205 (Without earth removal) appears on 152 US grants and 94 published applications in this corpus.
Search patents in E21B- Granted patents
- 152
- Published applications
- 94
- Assignees
- 72
- Inventors
- 234
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 3 |
| 2002 | 2 | 2 |
| 2003 | 4 | 4 |
| 2004 | 5 | 1 |
| 2005 | 2 | 4 |
| 2006 | 2 | 2 |
| 2007 | 1 | 4 |
| 2008 | 1 | 2 |
| 2009 | 0 | 3 |
| 2010 | 2 | 3 |
| 2011 | 4 | 6 |
| 2012 | 3 | 5 |
| 2013 | 5 | 2 |
| 2014 | 5 | 6 |
| 2015 | 4 | 4 |
| 2016 | 4 | 2 |
| 2017 | 6 | 5 |
| 2018 | 1 | 4 |
| 2019 | 4 | 6 |
| 2020 | 4 | 3 |
| 2021 | 5 | 4 |
| 2022 | 3 | 7 |
| 2023 | 3 | 3 |
| 2024 | 6 | 3 |
| 2025 | 2 | 5 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pullback system for drilling tool7 Apr 2026US 12,595,703 B2Vermeer Manufacturing Company
- High pressure burrowing everting robot with sensorized skin and for subsurface sensor deployment17 Mar 2026US 12,577,837 B2Georgia Tech Research Corporation
- Pullback system for drilling tool8 Jul 2025US 12,352,165 B2Vermeer Manufacturing Company
- Rigless drilling and wellhead installation20 May 2025US 12,305,513 B2Vetco Gray Scandinavia.AS
- Device and method for pulling pipe12 Nov 2024US 12,140,250 B2TT Technologies, Inc.
- Pullback system for drilling tool16 Jul 2026US 2026/0201752 A1Vermeer Manufacturing Company
- Earth Drilling Device16 Oct 2025US 2025/0320780 A1TRACTO-TECHNIK GmbH & Co. KG
- Pullback system for drilling tool2 Oct 2025US 2025/0305365 A1Vermeer Manufacturing Company
- High pressure burrowing everting robot with sensorized skin and for subsurface sensor deployment2 Oct 2025US 2025/0305369 A1Georgia Tech Research Corporation
- Apparatus and method of deploying a pipe within a borehole14 Aug 2025US 2025/0257623 A1
Most cited
By later US patents
- Method and apparatus for replacing buried pipe209US 4,507,019 AExpand-A-Line, Incorporated · 1985
- Sonic method and apparatus for installing monitor wells for the surveillance and control of earth contamination64US 4,836,299 A1989
- Pipe bursting and replacement method61US 5,078,546 AConsolidated Edison Company of New York, Inc. · 1992
- Device and method for trenchless replacement of underground pipe60US 6,305,880 B1WRB Company, Inc. · 2001
- Trenchless pipeline replacement53US 5,205,671 ATrenchless Replacement Systems, Ltd. · 1993