Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Andrew D. Campbell | Mastercard | 3 |
| 2 | Alison Margaret Gillbanks | Conopco | 1 |
| 2 | Gordon Smythe | — | 1 |
| 2 | Frances Gawthrop | — | 1 |
6 patents · 4 inventors
Ranked #64,531 of 111,555 cities Top 60%
Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Andrew D. Campbell | Mastercard | 3 |
| 2 | Alison Margaret Gillbanks | Conopco | 1 |
| 2 | Gordon Smythe | — | 1 |
| 2 | Frances Gawthrop | — | 1 |