Coupler Developments Limited
Douglas, Isle of Mann, GB· latest recorded location
Coupler Developments Limited is named on 8 US grants and 5 published applications in this corpus. Its most frequent classification is E21B (Earth or rock drilling).
- Granted patents
- 8
- Published applications
- 5
- Inventors
- 1
- Granted in 2026 so far
- 0
- Most recent grant
- 8 Jul 2008
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 3 | 0 |
| 2008 | 1 | 0 |
By publication year.
Technology areas
Share of 13 documents
Recent patents
- Radially moving slips8 Jul 2008US 7,395,855 B2
- Drilling method7 Aug 2007US 7,252,151 B2
- Method and apparatus with slips assembly for coupling tubulars without interruption of circulation7 Aug 2007US 7,252,161 B2
- Drilling method13 Mar 2007US 7,188,683 B2
- Continuous circulation drilling method25 May 2004US 6,739,397 B2
- Slips13 Oct 2005US 2005/0224260 A1
- Method and apparatus with slips assembly for coupling tubulars without interruption of circulation13 Jan 2005US 2005/0006147 A1
- Drilling method19 Aug 2004US 2004/0159465 A1
- Drilling method25 Dec 2003US 2003/0234101 A1
- Continuous circulation drilling method31 Oct 2002US 2002/0157838 A1
Most cited
By later US patents