| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | United Kingdom | 4 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Transport | |
| #3 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Graham Trippe | 7 |
| Publication | Filing date | Title |
|---|---|---|
| GB609932A | Vehicle spot light | |
| GB538917A | Headlights | |
| US2261508A | Headlight | |
| US2165689A | Head lamp for vehicles | |
| US2165688A | Lamp control means | |
| US2123125A | Head lamp for vehicles | |
| US2058743A | Beam level indicator for automobile head lamps | |
| GB407162A | Improvements in or relating to light directing devices | |
| GB377456A | Improvements in reflectors | |
| US1953838A | Reflector | |
| US1413811A | Headlight |