Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7444652 | Protective device | Roxanne Yvonne Fritsch | 2008-10-28 |
| 6801394 | Cleaning device for treating the video head and/or rotating drum of a video recorder and/or playback unit | Roxanne Yvonne Fritsch | 2004-10-05 |
| 6099388 | Method and apparatus for repairing a damaged compact disc | Roxanne Yvonne Fritsch | 2000-08-08 |
| 6028830 | Cleaning device and cleaning method | Roxanne Yvonne Fritsch | 2000-02-22 |
| 6028751 | Cleaning device for cleaning components of a video unit and for cleaning outside a tape path area | Roxanne Yvonne Fritsch | 2000-02-22 |
| 5864348 | Cleaning device and a method for cleaning an ink jet printing head | Roxanne Yvonne Fritsch | 1999-01-26 |
| 5856900 | Camcorder actuated treatment device for treating a camcorder head | Roxanne Yvonne Fritsch | 1999-01-05 |
| 5309307 | Timer controlled device for cleaning a moving head and/or a drum of a playback and/or recording unit | Roxanne Yvonne Fritsch | 1994-05-03 |
| 4941065 | Apparatus for cleaning a video player/recorder | — | 1990-07-10 |
| 4916564 | Cleaning apparatus for a disc drive | — | 1990-04-10 |
| 4868700 | Cleaning device for disc drive unit | Alexander Phillip McDonnell | 1989-09-19 |
| 4851945 | Demagnetizing device having an oscillating permanent magnet | Roxanne Yvonne Fritsch, Francois Malgat | 1989-07-25 |
| 4761700 | Video cleaning device | — | 1988-08-02 |
| 4698712 | Cleaning device | — | 1987-10-06 |
| 4662025 | Cleaning device | — | 1987-05-05 |
| 4622617 | Cleaning apparatus for a disc drive | — | 1986-11-11 |
| 4616284 | Cleaning cassette with means for intermittently wetting a cleaning tape | — | 1986-10-07 |