Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6652560 | Bone anchor | Peter Gerke, Clive Reay-Young, Nicholas Woods | 2003-11-25 |
| 6517578 | Graft suspension device | — | 2003-02-11 |
| 5225390 | Catalyst for reducing nitrogen oxides | Doris Vogel, Norbert Landgraf, Josef Sprehe, Wolfgang Gajewski, Helmut Schmelz | 1993-07-06 |
| 5045516 | Process for producing a catalyst for reducing nitrogen oxides in flue gases | Doris Vogel, Norbert Landgraf, Josef Sprehe, Wolfgang Gajewski, Helmut Schmelz | 1991-09-03 |
| 4849392 | Catalyst material for reducing the nitrogen oxides in flue gases | Erich Hums, Helmut Schmelz | 1989-07-18 |
| 4812296 | Process utilizing catalytic material for the reduction of nitrous oxides | Helmut Schmelz, Helmut Thomann, Renate Kuschke, Eva-Helga Wilbert, Wolfgang Gajewski +5 more | 1989-03-14 |