Issued Patents All Time
Showing 51–75 of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6111106 | 1,4,5,6-tetrahydropyrazine-2-carboxamides | Walter Brieden, Jean-Paul Roduit | 2000-08-29 |
| D430177 | Cutting blade | Wolfgang Fuchs, Eduard Gansel, Uwe Engelfried | 2000-08-29 |
| 6066736 | Process for preparing alkoxypyrazine derivatives | — | 2000-05-23 |
| 6020515 | Process for the preparation of malononitrile | Peter Chen, Johannes Hoffner, Andre Mueller | 2000-02-01 |
| 6004194 | Electric hand-operated grinder | Eugen Hild, Joao Bergner | 1999-12-21 |
| 5998618 | Process for preparing 3-alkoxy-5-alkypyrazin-2-amines | Walter Brieden | 1999-12-07 |
| 5959136 | Process for the preparation of malononitrile | Peter Chen, Johannes Hoffner, Andre Mueller | 1999-09-28 |
| 5945534 | Process for the preparation of optically active piperazine-2-carboxylic acid derivatives | — | 1999-08-31 |
| 5939549 | Process for the production of 1,4,5,6-tetrahydropyrazine-2-carboxylic acid amides | Walter Brieden, Jean-Paul Roduit | 1999-08-17 |
| 5886181 | Process for the preparation of optically active piperazine-2-carboxylic acid derivatives | Jean-Paul Roduit | 1999-03-23 |
| 5877319 | Process for preparing 3-alkoxy-5-alkylpyrazin-2-amines | Walter Brieden | 1999-03-02 |
| 5796078 | Method for the inductive surface hardening of workpieces | Adalbert Ottenwaelder, Manfred Machnig, Dieter Kullick | 1998-08-18 |
| 5772498 | Electrical hand grinder | Werner Neubert | 1998-06-30 |
| 5756756 | Asymmetric hydrogenation of dihyrofuroimidazole derivatives | Martin Eyer, John McGarrity | 1998-05-26 |
| 5610312 | Asymmetric hydrogenation of dihydrofuroimidazole derivatives | Martin Eyer, John McGarrity | 1997-03-11 |
| 5555626 | Reciprocating drive mechanism | — | 1996-09-17 |
| 5545077 | Belt grinder with a plate tensioning means | Cornelius Boeck | 1996-08-13 |
| 5533581 | Electric hand tool, in particular drill | Walter Barth, Frank Langenfelder, David Martinez | 1996-07-09 |
| 5451684 | Asymmetric hydrogenation of furoimidazole derivatives | John McGarrity, Felix Spindler, Martin Eyer | 1995-09-19 |
| 5293915 | Manual milling machine | Cornelius Boeck | 1994-03-15 |
| 5273089 | Routing machine | Cornelius Boeck, Bruce Roberts, David Martinez | 1993-12-28 |
| 5113012 | Process for the production of 1,3-cyclopentanedione | John McGarrity | 1992-05-12 |
| 5087760 | Process for the production of 1,3-cyclopentanedione | John McGarrity | 1992-02-11 |
| 4628604 | Handheld circular saw with baseplate | — | 1986-12-16 |
| 4314463 | Jacquard attachment for warp knitting machines | — | 1982-02-09 |