Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7243462 | Access door | — | 2007-07-17 |
| 4998381 | Inspection cover arrangement | — | 1991-03-12 |
| 4439965 | Firecode door-casing element | — | 1984-04-03 |
| 4424607 | Symmetrical door hinge | — | 1984-01-10 |
| 4418746 | Plate-type heat-exchanger and manifold assembly | Christoph Langenhorst | 1983-12-06 |
| 4344258 | Device for mounting a door leaf in a door opening | — | 1982-08-17 |
| 4274235 | Window-frame assembly | — | 1981-06-23 |
| 4251962 | Clamping device for clamping a structure into a frame | — | 1981-02-24 |