| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Spain | 4 | |
| #2 | France | 4 | |
| #3 | Belgium | 2 | |
| #4 | Germany | 2 | |
| #5 | United Kingdom | 2 | |
| #6 | Sweden | 2 | |
| #7 | Canada | 1 | |
| #8 | Norway | 1 | |
| #9 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Vehicle signalling and lighting | |
| #2 | Vehicle servicing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Martin F R P | 7 |
| #2 | Martin Frederick R P | 2 |
| #3 | Patrick Martin Frederick Raymo | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES401801A1 | Lamp self-levelling system | |
| GB1314035A | Self levelling lamps for vehicles | |
| GB1314034A | Self levelling lamps for vehicles | |
| US3636343A | Self-levelling vehicle lamps | |
| CA910875A | Self-levelling headlights |