Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5496456 | Vibrating conveyor device dipping into a liquid with damping of vibration transmission | Ju/ rgen Fischer, Siegfried Birkle, Werner Elsel, Arnolf Maurer, Waldemar Nippe | 1996-03-05 |
| 5244564 | Apparatus for electrolytic surface coating of pourable material and method for operating the apparatus | Siegfried Birkle, Waldemar Nippe | 1993-09-14 |
| 5215641 | Device for transporting bulk material comprising a vibrator conveyor which dips into a liquid | Siegfried Birkle, Werner Elsel, Waldemar Nippe, Arnolf Maurer | 1993-06-01 |
| 5188718 | Apparatus for electrolytic surface coating of pourable material | Siegfried Birkle, Waldemar Nippe | 1993-02-23 |
| 5186803 | Device for electrolytic surface treatment of bulk material | Siegfried Birkle, Jurgen Fischer | 1993-02-16 |
| 5131996 | Surface-treating apparatus for agitatable material | Siegfried Birkle | 1992-07-21 |
| 4969985 | Device for transporting agitatable material having a vibrator which is submerged in a liquid | Siegfried Birkle | 1990-11-13 |
| 4876801 | Method and means for drying bulk goods | Siegfried Birkle | 1989-10-31 |
| 4803811 | Lapping device for surface enhancement of bulk material | Siegfried Birkle | 1989-02-14 |
| 4759831 | Electroplating apparatus particularly for electro-deposition of aluminum | Siegfried Birkle | 1988-07-26 |
| 4701248 | Apparatus for electrolytic surface treatment of bulk goods | Siegfried Birkle | 1987-10-20 |
| 4696728 | Apparatus for mass electroplating of bulk goods | Siegfried Birkle | 1987-09-29 |
| 4671862 | Apparatus for mass electroplating of bulk goods | Siegfried Birkle | 1987-06-09 |
| 4670120 | Apparatus for electrolytic surface treatment of bulk goods | Siegfried Birkle | 1987-06-02 |
| 4668367 | Lock for loading and unloading goods into a treatment apparatus having a protective atmosphere | Siegfried Birkle | 1987-05-26 |
| 4460447 | Apparatus for the galvanic deposition of aluminum | Siegfried Birkle, Klaus Stoger | 1984-07-17 |
| 4444636 | System for the galvanic deposition of metals such as aluminum | Richard Doetzer, Klaus Stoeger, Paul Hini | 1984-04-24 |
| 4435265 | Device for electro-deposition of aluminum | Siegfried Birkle, Klaus Stoger | 1984-03-06 |
| 4427518 | Electroplating device | Hans De Vries, Siegfried Birkle, Klaus Stoeger | 1984-01-24 |
| 4427522 | Electrically insulating protective device | Siegfried Birkle, Klaus Stoger, Hans De Vries | 1984-01-24 |
| 4425211 | Device for electrodeposition of aluminum | Siegfried Birkle, Klaus Stoeger | 1984-01-10 |
| 4419204 | Installation for the electro-deposition of metals, particularly aluminum | Siegfried Birkle, Klaus Stoeger | 1983-12-06 |
| 4415422 | Apparatus for electro-depositing aluminum | Siegried Birkle, Klaus Stoger | 1983-11-15 |
| 4399018 | Device for electrodeposition of aluminum | Siegfried Birkle, Klaus Stoeger | 1983-08-16 |
| 4392936 | Device for the galvanic deposition of aluminum | Klaus Stoeger, Siegfried Birkle | 1983-07-12 |