Alberta Basic Industries, Ltd.
3Patents
0Active
3Granted
27Portfolio score
Filing activity: May 2, 1996 → Feb 25, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5875841A | Oil well blow-out preventer | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5794693A | Dual tubing string hanging apparatus | Fixed Constructions | 19 | Expired |
| US6199630A | Pull-through tubing string rotator for an oil well | Fixed Constructions | 15 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.