Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6488724 | Heavy oils having improved properties and an additive therefor | Michael Feustel, Hakan Byström, Geoffrey N. Richards | 2002-12-03 |
| 6237350 | Refrigerated display case and method for sanitizing a refrigerated display case | — | 2001-05-29 |
| 6182459 | Refrigerated case for food products | — | 2001-02-06 |
| 5811385 | High-concentration aqueous ester quat solutions | Oliver Eyrisch | 1998-09-22 |
| 5346344 | Cutting area | Dieter Kress, Friedrich Haberle | 1994-09-13 |
| 5252257 | Water-containing concentrate of at least one alkyl- or alkenyl-substituted ammonium compound | Heinz Hoffmann, Hubert Seitz | 1993-10-12 |
| 4740115 | Broach | Karl Hertel | 1988-04-26 |
| 4729700 | Drive unit for rotary tools | Karl Hertel | 1988-03-08 |
| 4632614 | Composite tool unit for chip-removing machining | Gerhard Rall, Karl Hertel, Hermann L. Kastner | 1986-12-30 |