Top Inventors at Urban Transportation Development Corp. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Roy E. Smith | 9 |
| 2 | Dennis P. Chadwick | 5 |
| 3 | George Sobolewski | 2 |
| #4 | Heinz Becker | 2 |
| #5 | W. John Ballantyne | 2 |
| #6 | Colin C. May | 1 |
| #7 | David H. Woods | 1 |
| #8 | Dennis F. Williamson | 1 |
| #9 | Fred S. Whitfield | 1 |
| #10 | Harry Skoblenick | 1 |
| #11 | John Stannard | 1 |
| #12 | Ron J. Anderson | 1 |
| #13 | William C. Beattie | 1 |
| #14 | William A. Spurr | 1 |
| #15 | Ernest Waddington | 1 |
| #16 | Allen K. Wallace | 1 |