Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7988760 | Method of making nanocrystalline tungsten powder | Hans-Joachim Lunk | 2011-08-02 |
| 7989064 | Ceramic-coated tungsten powder | Hans-Joachim Lunk, Ricky D. Morgan, Dale E. Benjamin, Tuan A. Dang, Timothy A. Frisk | 2011-08-02 |
| 6478845 | Boron addition for making potassium-doped tungsten | Hans-Joachim Lunk, Michael Salmen, Anna S. Nached, Maria Bozena Winnicka | 2002-11-12 |
| 6165412 | Method of making non-sag tungsten wire for electric lamps | Hans-Joachim Lunk, Michael Salmen | 2000-12-26 |
| 6129890 | Method of making non-sag tungsten wire | Hans-Joachim Lunk, Thomas J. Patrician, Harry D. Martin, III | 2000-10-10 |