Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6933007 | Method of forming an improved roofing material | Fred Fensel, Melissa Rus | 2005-08-23 |
| 5108038 | Material spreader for conveyor-type hopper body | Wesley A. Rosenberg | 1992-04-28 |