E21C 35/1833
Multiple inserts
Official title: {Multiple inserts}
E21C35/1833 (Multiple inserts) appears on 38 US grants and 37 published applications in this corpus.
Search patents in E21C- Granted patents
- 38
- Published applications
- 37
- Assignees
- 19
- Inventors
- 73
- Latest grant
- 9 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 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 | 1 |
| 2008 | 2 | 4 |
| 2009 | 0 | 3 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 2 | 0 |
| 2013 | 1 | 3 |
| 2014 | 1 | 2 |
| 2015 | 1 | 4 |
| 2016 | 0 | 2 |
| 2017 | 1 | 0 |
| 2018 | 1 | 4 |
| 2019 | 6 | 6 |
| 2020 | 3 | 0 |
| 2021 | 5 | 4 |
| 2022 | 2 | 2 |
| 2023 | 2 | 0 |
| 2024 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Rotary tool with thermally stable diamond9 Apr 2024US 11,952,896 B2Schlumberger Technology Corporation
- Shear cutter pick milling system12 Mar 2024US 11,926,972 B2US Synthetic Corporation
- Scanning electrochemical microscopy with oscillating probe tip5 Mar 2024US 11,921,130 B2University of Warwick
- Wear-resistant armored cutting tool21 Feb 2023US 11,585,216 B2Kennametal Inc.
- Milling systems and methods for a milling machine7 Feb 2023US 11,572,665 B2Caterpillar Paving Products Inc.
- Wear-resistant armored cutting tool27 Oct 2022US 2022/0341321 A1Kennametal Inc.
- Milling systems and methods for a milling machine1 Sep 2022US 2022/0274290 A1Caterpillar Paving Products Inc.
- Rotary tool with thermally stable diamond16 Dec 2021US 2021/0388723 A1Schlumberger Technology Corporation
- Scanning electrochemical microscopy with oscillating probe tip2 Dec 2021US 2021/0373047 A1University of Warwick
- Shear cutter pick milling system26 Aug 2021US 2021/0262179 A1US Synthetic Corporation
Most cited
By later US patents
- Tool for a mine working machine comprising a diamond-charged abrasive component165US 4,944,559 ASociete Industrielle de Combustible Nucleaire · 1990
- Erosion resistant cutting bit with hardfacing122US 4,725,098 AKennametal Inc. · 1988
- Wear resistant tool62US 7,469,972 B22008
- Attack tool59US 7,464,993 B22008
- Non-rotating pick with a pressed in carbide segment52US 8,136,887 B2Schlumberger Technology Corporation · 2012