| Application number | Title of the application | Filing Date | Status |
|---|
| 90/005260 | SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME | Feb 11, 1999 | Issued |
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| 09/236453 | Lead-acid safety battery cap | Jan 24, 1999 | Abandoned |
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| 09/217810 | PROTECTION APPARATUS FOR A STORAGE BATTERY | Dec 21, 1998 | Abandoned |
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| 09/210152 | PROTON EXCHANGE MEMBRANE FUEL CELL EXTERNAL MANIFOLD SEAL | Dec 10, 1998 | Abandoned |
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