Chain Train
NO· latest recorded location
Chain Train is named on 1 US grants and 1 published applications in this corpus. Its most frequent classification is E21B (Earth or rock drilling).
- Granted patents
- 1
- Published applications
- 1
- Inventors
- 2
- Granted in 2026 so far
- 0
- Most recent grant
- 29 Apr 2008
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
By publication year.
Technology areas
Share of 2 documents
Recent patents
Most cited
By later US patents