Showing 1–21 of 21 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Joseph Holzapfel | — | 6 |
| 2 | Russell Matson | — | 4 |
| 3 | Jameson Rader | — | 3 |
| #4 | Brian L. Hollinger | — | 2 |
| #4 | Fred W. Kullenberg | — | 2 |
| #4 | Chuck Schneider | Microsoft | 2 |
| #4 | Douglas R. BRAKE | — | 2 |
| #4 | Craig Alan Alberhasky | AT&T | 2 |
| #4 | Joseph W. Carnazzo | — | 2 |
| #4 | Frank Greene | — | 2 |
| #11 | Thomas W. Menck | — | 1 |
| #11 | Charles W. Schlote | — | 1 |
| #11 | Chris Kudlacz | — | 1 |
| #11 | Kenneth E. Weinrich | — | 1 |
| #11 | Bonnie E. Streit | — | 1 |
| #11 | W. Howard Phelps | — | 1 |
| #11 | Roy H. Michaelsen | Unknown | 1 |
| #11 | Nelson J. Hymans | — | 1 |
| #11 | David P. Sheppard | — | 1 |
| #11 | Divya Kadam | L.B. Foster Rail Technologies | 1 |
| #11 | Roger Henson | Intrado | 1 |
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