Top Inventors at Lafarge Canada All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | David Bridson Oates | 11 |
| 2 | Donald Stephen Hopkins | 5 |
| 3 | Brian O'Hearn | 4 |
| #4 | Kevin Cail | 3 |
| #5 | Philip Souza Zacarias | 3 |
| #6 | Don Zakariasen | 2 |
| #7 | John G. Whellock | 2 |
| #8 | Juan Ignacio Cariaga | 2 |
| #9 | Paul Lehoux | 2 |
| #10 | Alan Van Sloten | 2 |
| #11 | David T. Horvat | 1 |
| #12 | David K. Wiebe | 1 |
| #13 | Donald G. Horn | 1 |
| #14 | Horace H. Compton | 1 |
| #15 | James Edward Cross | 1 |
| #16 | Janos Toth | 1 |
| #17 | Juan Ignacio Cariaga Crespo | 1 |
| #18 | Michael D. Thomas | 1 |
| #19 | Nils Steward | 1 |
| #20 | Peter A. MacKenzie | 1 |
| #21 | Philip Zacarias | 1 |
| #22 | Rayburn R. Anderson | 1 |
| #23 | Robert Kim Ungar | 1 |
| #24 | Syed Suhail Akhtar | 1 |
| #25 | Terrance Ronald Walton | 1 |
| #26 | George Chris Kistler | 1 |
| #27 | Michael Ritch | 1 |
| #28 | Adelana Gilpin-Jackson | 1 |