E21B 10/083
With longitudinal axis
Official title: {with longitudinal axis, e.g. wobbling or nutating roller bit (longitudinal axis roller reamers E21B10/30)}
E21B10/083 (With longitudinal axis) appears on 23 US grants and 11 published applications in this corpus.
Search patents in E21B- Granted patents
- 23
- Published applications
- 11
- Assignees
- 10
- Inventors
- 35
- Latest grant
- 19 May 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 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 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 3 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 0 |
| 2017 | 2 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Earth-boring drill bits with controlled cutter speed across the bit face, and related methods19 May 2020US 10,655,395 B2Baker Hughes, A Ge Company, LLC
- Drill bits with anti-tracking features23 May 2017US 9,657,527 B2Baker Hughes Incorporated
- Drilling apparatus and method28 Mar 2017US 9,605,484 B2Drilformance Technologies, LLC
- Drill bits with anti-tracking features10 Feb 2015US 8,950,514 B2Baker Hughes Incorporated
- Device for advancing drillings in the ground9 Feb 2010US 7,658,244 B2Wirth Maschinen-und Bohrgerate-Fabrik GmbH
- Earth-boring drill bits with controlled cutter speed across the bit face, and related methods16 May 2019US 2019/0145175 A1Baker Hughes, A Ge Company, LLC
- Drill bits with anti-tracking features30 Jul 2015US 2015/0211303 A1Baker Hughes Incorporated
- Balancing of drill bits16 Apr 2015US 2015/0101868 A1Smith International, Inc.
- Drilling apparatus and method4 Sep 2014US 2014/0246234 A1Drilformance Technologies, LLC
- Drill Bits with Anti-Tracking Features29 Dec 2011US 2011/0315452 A1Baker Hughes Incorporated
Most cited
By later US patents
- Earth drilling knobby bit105US 4,096,917 A1978
- Borehole angle control by gage corner removal from mechanical devices associated with drill bit and drill string42US 4,262,758 A1981
- Nutating drill bit23US 4,168,755 AWalker-Neer Manufacturing Co., Inc. · 1979
- Longitudinal axis roller drill bit with gage inserts protection23US 4,203,496 ASmith International, Inc. · 1980
- Eccentric rotary bit19US 4,372,403 A1983