Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6524525 | Method for producing a contact material for contact pieces for vacuum switch devices, and a contact material and contact pieces therefor | Susett Rolle, Alfredo Lietz | 2003-02-25 |
| 6056916 | Process for producing a product made of a contact material based on silver, contact material and product made of the contact material | — | 2000-05-02 |
| 6001149 | Process for producing a shaped article from contact material based on silver, contact material and shaped article | Gunter Tiefel | 1999-12-14 |
| 5796017 | Silver-based contact material, use of such a contact material, in switchgear for power engineering applications and method of manufacturing the contact material | — | 1998-08-18 |
| 5663500 | Silver-based contact material for switchgear used in power engineering | Manfred Muller, Gunter Tiefel | 1997-09-02 |
| 5628448 | Process for bonding a contact layer of silver-metal oxide material and metal contact base, and suitable contact layer | — | 1997-05-13 |
| 5520323 | Method for presoldering a contact for an electrical switching device and semi-finished product for use as a contact | Manfred Schneider | 1996-05-28 |
| 5486222 | Sintered composite materials for electric contacts in power technology switching devices and process for producing them | — | 1996-01-23 |
| 5429656 | Silver-based contact material for use in power engineering switchgear | Gunter Tiefel | 1995-07-04 |
| 5422065 | Silver-based contact material for use in power-engineering switchgear, and a method of manufacturing contacts made of this material | Wolfgang Haufe | 1995-06-06 |
| 5417363 | Process for bonding contacts to a contact base by hard soldering and semifinished product which can be obtained by this process | Manfred Schneider, Alfred Dotzer | 1995-05-23 |
| 5330702 | Process for producing CuCr contact pieces for vacuum switches as well as an appropriate contact piece | Horst Kippenberg | 1994-07-19 |