Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6844104 | Vent plug system for storage batteries | Wilhelm Cramer, Manfred Hülscher | 2005-01-18 |
| 6635386 | Process for producing an industrial electrolyte for lead storage batteries in the form of a thixotropic gel | Jean Ruch | 2003-10-21 |
| 6376119 | Plug system for capping cell vents in a storage battery and a battery cap for use in the plug system | Ulrich Wulf | 2002-04-23 |
| 6071642 | Method for manufacturing a battery cover which is at least partially electrically conductive | Gerhard Pospiech, Hermann Hester, Werner Hampe, Franz-Josef Kohaupt | 2000-06-06 |
| 5848468 | Method of forming metallic current conducting lugs at electrode plates of accumulators | Josef Gurtler, Peter Gleuel | 1998-12-15 |
| 5435182 | Method and apparatus for determining at least one physical parameter of accumulator electrode plates | Rainer Wagner, Peter Scharf | 1995-07-25 |
| 5415219 | Grid casting mold for the casting of lead grids for accumulators and methods for its manufacture | Reinhold Wiedenmann, Karl-Christoph Berger | 1995-05-16 |
| 4988418 | Method of electrically measuring the concentration of acids | Fritz Beck, Holger Krohn, Rainer Wagner | 1991-01-29 |
| 4788113 | Sheet material and separator envelopes manufactured therefrom for the electrode plates of batteries | Christian Bohle | 1988-11-29 |
| 4781997 | Storage battery that is protected against the discharge of acid | Christian Bohle, Ulrich Romling | 1988-11-01 |
| 4778479 | Method of manufacturing accumulators having accumulator plate sets and an accumulator manufactured in accordance with this method | Ulrich Romling, Udo D. Muhlhan, Walter Wipperfurth | 1988-10-18 |
| 4760001 | Negative electrode for lead accumulators | Wieland Rusch | 1988-07-26 |
| 4657799 | Sheet material for the production of separator pockets for lead accumulators | Walter Bernardi | 1987-04-14 |
| 4310353 | Low-antimony lead alloy | Ulrich Heubner | 1982-01-12 |