Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5149468 | Method for producing filter material formed of melt-blown non-woven mat sandwiching additional material | — | 1992-09-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5149468 | Method for producing filter material formed of melt-blown non-woven mat sandwiching additional material | — | 1992-09-22 |