Top Inventors at Mtr Holdings All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Edwin J. Luetzow | 8 |
| 2 | Richard L. Luetzow | 6 |
| 3 | Mika Laitila | 2 |
| #4 | Toni Laitila | 2 |
| #5 | Antero Samuel Laitila | 2 |
| #6 | Chun Cheong Hon | 1 |
| #7 | Hing Keung Chan | 1 |
| #8 | Hwa Ywa Tam | 1 |
| #9 | Kang Kuen Lee | 1 |
| #10 | Shun Yee Liu | 1 |
| #11 | Siu Lau Ho | 1 |
| #12 | Tony Kar Yun Lee | 1 |
| #13 | Aiken Yiu Ming Tam | 1 |