| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 11 | |
| #2 | Israel | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Optics | |
| #4 | Environmental technology | |
| #5 | Transport |
| # | Name | Total Patents |
|---|---|---|
| #1 | Smith David | 3 |
| #2 | Smith David Leslie | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB9318169D0 | Improvements in or relating to wheelbarrows | |
| GB9316357D0 | Portable traffic sign | |
| GB9217264D0 | Improvements in or relating to portable traffic signs | |
| GB9216901D0 | Improvements in or relating to portable traffic signs | |
| GB9201653D0 | Improvements in or relating to traffic control apparatus | |
| GB8918439D0 | Improvements in or relating to traffic control apparatus | |
| GB2090313A | Road marker cones | |
| GB2007536A | Preparation of Retro-Reflective Material |