Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6256798 | Helmet with adjustable safety strap | Werner Tress, Dieter Widmer | 2001-07-10 |
| 6094771 | WC brush with handle and brush sections and brush storage device | Dieter Widmer | 2000-08-01 |