Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6296966 | One-piece battery containing a device for measuring the internal temperature | Roelof Verhoog | 2001-10-02 |
| 6051332 | Valve cap for an electric storage cell | Roelof Verhoog | 2000-04-18 |
| 5948560 | Sealed feed-through device for an insulative partition wall between two electrode assemblies of a storage battery | Roelof Verhoog, Jean-Loup Barbotin | 1999-09-07 |