Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6220541 | Web winding apparatus with two mandrels mounted at fixed positions and knife carriage movable therebetween | — | 2001-04-24 |
| 5810280 | Matrix rewinder | Ralph L. Ryan | 1998-09-22 |
| 5792308 | Apparatus for applying an adhesive coated tape on a core mounted on a mandrel | Ralph L. Ryan | 1998-08-11 |