Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6004431 | Headbox with active local flow control | — | 1999-12-21 |
| 5820734 | Trailing element for a headbox | Richard R. Hergert | 1998-10-13 |
| 5183537 | Headbox tube bank apparatus and method of directing flow therethrough | Richard E. Hergert, Richard R. Hergert, Eugene B. Neill, Arnold J. Roerig, Thomas D. Rogers +2 more | 1993-02-02 |