Top Inventors at Blue Circle Industries Plc All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Christine A. Beckett | 2 |
| 2 | David E. Smith | 2 |
| 3 | Ion I. Inculet | 2 |
| #4 | Kenneth B. Matthews | 2 |
| #5 | Lawrence Paul Evans | 2 |
| #6 | Nicholas M. Hepher | 2 |
| #7 | Richard R. Davidson | 2 |
| #8 | Geoffrey Roy Long | 1 |
| #9 | Leslie E. Shiel | 1 |
| #10 | Peter Shelley Mills | 1 |
| #11 | Gerson M. F. Vas | 1 |
| #12 | Anna K. E. Norberg | 1 |