Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8034186 | Method for, and apparatus for, cleaning tubes | Martin Zoettl | 2011-10-11 |
| 6353284 | Glass funnel with a nearly rectangular cross-sectioned parabolic region especially for a television tube | Anne Schott, Stefan Hergott | 2002-03-05 |