E21C 27/46
By percussed planing means
Official title: by percussed planing means
E21C27/46 (By percussed planing means) appears on 4 US grants and 4 published applications in this corpus.
Search patents in E21C- Granted patents
- 4
- Published applications
- 4
- Assignees
- 3
- Inventors
- 8
- Latest grant
- 15 Jan 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 2 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for directionally swaying and resetting harrow teeth of rolling harrow loader-excavator and rolling harrow loader-excavator with directional sway and reset harrow teeth for implementing such method15 Jan 2019US 10,180,066 B2
- Resonant tool driving system with gap10 Aug 1982US 4,343,514 AThe Gurries Company
- Tool driving apparatus and method21 Oct 1980US 4,229,046 AThe Gurries Company
- Mining method and mining machine for cutting away hard mineral materials1 Jan 1980US 4,181,363 AGutehoffnungshutte Sterkrade Aktiengesellschaft
- A cutting head assembly19 Sep 2024US 2024/0309761 A1Optima Mining Systems Pty Ltd
- Method of loading material by curved auxiliary rocker arm on mining machine, and mining machine having curved auxiliary rocker arm capable of loading material for implementing said method22 Sep 2016US 2016/0273357 A1
- Method for directionally swaying and resetting harrow teeth of rolling harrow loader-excavator and rolling harrow loader-excavator with directional sway and reset harrow teeth for implementing such method15 Sep 2016US 2016/0265357 A1
- Rolling friction or suspension friction impact mining method and wear-resistant impact mining machine using said method14 May 2015US 2015/0130256 A1
Most cited
By later US patents