Top Inventors at The Duriron Company All Time
Showing 1–30 of 30 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Richard L. Helferich | 8 |
| 2 | Robert C. Schenck | 4 |
| 3 | Jack L. Wissman | 2 |
| 3 | Robert Joseph Brown | 2 |
| 3 | William B. Shook | 2 |
| #6 | Bernard Brun | 1 |
| #6 | David Bowers | 1 |
| #6 | Dale Scott Reed | 1 |
| #6 | Dennis M. Rusnak | 1 |
| #6 | Douglas A. Bogart | 1 |
| #6 | Donnie Ray Hammock | 1 |
| #6 | Donald L. Winegar | 1 |
| #6 | Gerald Patrick McDermott | 1 |
| #6 | Jack Joseph Powell | 1 |
| #6 | John McKinney | 1 |
| #6 | Kenneth Shepherd | 1 |
| #6 | Lawrence L. Korczykowski | 1 |
| #6 | Mark E. Peters | 1 |
| #6 | Richard J. Medvid | 1 |
| #6 | Royce Chaffin | 1 |
| #6 | Robert S. Wallace | 1 |
| #6 | Robert J. Zielinski | 1 |
| #6 | Shelby Scott | 1 |
| #6 | Joseph M. Arde, Jr. | 1 |
| #6 | Donald R. Stickle | 1 |
| #6 | Earl C. Sumner | 1 |
| #6 | Donald J. Chronister | 1 |
| #6 | Floyd Grant Felzien | 1 |
| #6 | Gary W. McKale | 1 |
| #6 | Anthony F. McGowan | 1 |