Top Inventors at North American Refractories All Time
Showing 1–40 of 40 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Ronald Barrett | 13 |
| 2 | Donald Abrino | 6 |
| 3 | Jack Hyde | 5 |
| 3 | Richard Hall | 5 |
| #5 | Daniel F. Fura | 4 |
| #5 | Samuel B. Bonsall, III | 4 |
| #7 | H. David Prior | 3 |
| #7 | Regis M. Perich | 3 |
| #7 | Shyam Miglani | 3 |
| #7 | Thomas F. Vezza | 3 |
| #11 | Harold D. Prior, Jr. | 2 |
| #11 | John Crooks | 2 |
| #11 | Keith Snider | 2 |
| #11 | Lee A. Nosbisch | 2 |
| #11 | Randy Lemley | 2 |
| #11 | Robert L. Antram | 2 |
| #11 | Timothy A. Leitzel | 2 |
| #11 | Tomas Richter | 2 |
| #11 | William D. Smiley | 2 |
| #20 | Bohus Brezny | 1 |
| #20 | Bryan R. Nelson | 1 |
| #20 | David J. Michael | 1 |
| #20 | David E. Shewmon | 1 |
| #20 | En-Sheng Chen | 1 |
| #20 | Israel Peretz | 1 |
| #20 | Jeffrey E. Bogan | 1 |
| #20 | Jerry Gerber | 1 |
| #20 | Mike Stromberg | 1 |
| #20 | Norman L. Sand | 1 |
| #20 | Robert D. Eckert | 1 |
| #20 | Robert H. Herron | 1 |
| #20 | Robert H. Phillips | 1 |
| #20 | Teacho Cercone | 1 |
| #20 | Glen H. Mead, III | 1 |
| #20 | George Bartich | 1 |
| #20 | Kenneth Noone | 1 |
| #20 | John E. Shoff | 1 |
| #20 | John Skok | 1 |
| #20 | William F. Schiavi | 1 |
| #20 | Alan L. Fisch | 1 |