Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6413303 | Activated carbon air filters | Johannes Marra | 2002-07-02 |
| 5738977 | Method of photolithographically producing a copper pattern on a plate of an electrically insulating material | Elisabeth Van Der Sluis-Van Der Voort | 1998-04-14 |