Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5964946 | Apparatus for manufacturing bitumen-based membrane sheets | Luigi Zanchetta | 1999-10-12 |
| 5843522 | Bitumen-based membrane with sealing means for contiguous membranes and relevant processing system | Luigi Zanchetta | 1998-12-01 |
| 5766729 | Bitumen-based membrane with sealing means for contiguous membranes and relevant processing system | Luigi Zanchetta | 1998-06-16 |