Top Inventors at Ico Services Limited All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Mark Grayson | 7 |
| 2 | Dennis Mullins | 6 |
| 3 | Richard Wyrwas | 6 |
| #4 | Benjamin H. Hutchinson | 5 |
| #5 | Sze-Ching Lu | 4 |
| #6 | Thomas Goerke | 4 |
| #7 | Govindan Nampoothiri | 2 |
| #8 | Jose Luiz Albuquerque Moraes | 2 |
| #9 | Patrick Chomet | 2 |
| #10 | Paul Regulinski | 2 |
| #11 | Charles W. Chambers, Jr. | 1 |
| #12 | Charles Chambers | 1 |
| #13 | Eddy Ka Ping Young | 1 |
| #14 | Keith Norman Guy Hungerford | 1 |
| #15 | Olof Ingemar Lundberg | 1 |
| #16 | Paul Chambers | 1 |
| #17 | Tarja-Leena Ranta | 1 |
| #18 | Thomas Francis Johnston | 1 |
| #19 | Latif Lokman | 1 |
| #20 | Philip Hon Nghia Quan | 1 |