| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 4 | |
| #2 | Australia | 2 | |
| #3 | Brazil | 2 | |
| #4 | Canada | 2 | |
| #5 | Germany | 2 | |
| #6 | United Kingdom | 2 | |
| #7 | Japan | 2 | |
| #8 | USSR (Union of Socialist Soviet Republics) | 2 | |
| #9 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lamothe Andre | 4 |
| #2 | Lamot Andre | 2 |
| #3 | Andore Emu Ramote | 2 |
| #4 | Lamothe A M | 2 |
| #5 | Lamothe Andre M | 2 |
| #6 | Lamothe A | 2 |
| #7 | Lamothe Andre Marie | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR2452583A1 | Drilling system incorporating inverse mud circulation - comprises raising debris-laden mud to surface by depression created in upper part of train of rods by air injection | |
| AU1788776A | Recovery of cuttings | |
| GB1522428A | Tubular connection for a drilling crown | |
| GB1516259A | Recovery apparatus for the collection of drilling or like cuttings |