| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 3 | |
| #2 | United Kingdom | 3 | |
| #3 | Netherlands | 3 | |
| #4 | Brazil | 2 | |
| #5 | Germany | 2 | |
| #6 | Italy | 2 | |
| #7 | Canada | 1 | |
| #8 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Measuring distances |
| # | Name | Total Patents |
|---|---|---|
| #1 | Russell Michael King | 7 |
| #2 | Russell Anthony William | 7 |
| #3 | Russell Antony William | 1 |
| #4 | Russell A | 1 |
| #5 | Russel Michael King | 1 |
| #6 | Russell Michael K | 1 |
| #7 | Russell M | 1 |
| #8 | Russell Anthony W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE3132820A1 | DEVICE FOR SIGNALING WITHIN A DRILL HOLE DURING THE DRILLING PROCESS | |
| DE3132807A1 | DEVICE FOR SIGNALING WITHIN A DRILL HOLE DURING THE DRILLING PROCESS | |
| GB2082653A | Apparatus for signalling within a borehole while drilling | |
| GB2076039A | Apparatus for and method of signalling within a borehole while drilling | |
| CA1074103A | Instrument for measuring the orientation of a borehole | |
| GB1578053A | Surveying of boreholes |