Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7386942 | Method and apparatus for mapping the trajectory in the subsurface of a borehole | — | 2008-06-17 |
| 6255825 | Method and apparatus for detecting, locating and resolving buried pipelines, cased wells and other ferrous objects | Terrence McConnell, Alastair Ryder-Turner | 2001-07-03 |
| 6229313 | Mapping of pipeline grounding points by airborne or ground magnetic measurements of current flow in the pipeline | — | 2001-05-08 |
| 5869759 | Method and apparatus for regional gravity surveys using a GPS receiver | — | 1999-02-09 |
| 4365153 | Detection of certain minerals of zinc, tungsten, fluorine, molybdenum, mercury and other metals using photoluminescence | John Colin Robbins | 1982-12-21 |
| 4291978 | Apparatus for automatically determining the position at which a beam of light impinges on a target | — | 1981-09-29 |