Issued Patents All Time
Showing 1–25 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D868122 | Cutting bit | Rohit Jadia, Brandon J. Kenno | 2019-11-26 |
| D818507 | Replaceable tip for a rotatable cutting tool | Chad A. Swope | 2018-05-22 |
| 9695687 | Block with coolant delivery | Luke A. Weber, Eric P. Helsel, Jeremiah L. Jonsrud | 2017-07-04 |
| D742949 | Cutting bit | Brandon J. Kenno, Jacques B. Williams | 2015-11-10 |
| D742948 | Cutting bit | Brandon J. Kenno, Jacques B. Williams | 2015-11-10 |
| 6863698 | Agent for dyeing keratin containing fibers | Horst Hoeffkes, Bernd Meinigke | 2005-03-08 |
| 6835211 | Direct hair dyes and use thereof | Bernd Meinigke, Horst Hoeffkes | 2004-12-28 |
| 6828443 | Dyes and colorants | Detlef Hollenberg, Horst Hoeffkes, Frank Naumann, Leszek J. Wolfram, Joachim-Kurt Foitzik | 2004-12-07 |
| 6814761 | Direct hair colorants | Frank Naumann, Bernd Meinigke, Horst Hoeffkes | 2004-11-09 |
| 6743263 | Method for coloring keratin fibers | Horst Hoeffkes, Doris Oberkobusch, Melanie Hitz | 2004-06-01 |
| 6736862 | Indole/indoline based hybrid dyes and indole/indoline based hybrid dye intermediate products | Frank Naumann, Detlef Hollenberg, Horst Hoeffkes | 2004-05-18 |
| 6635241 | Aminophenol derivatives and their use in oxidative hair dyes | Horst Hoeffkes, Bernd Meinigke | 2003-10-21 |
| 6630003 | Colouring agents with enzymes | Andrea Saettler, Albrecht Weiss, Astrid Kleen | 2003-10-07 |
| 6406501 | Oxidation colorants | Horst Hoeffkes, Detlef Hollenberg, Reinhard Mueller | 2002-06-18 |
| 6284003 | Oxidation colorants comprising 2-(2,5-diaminophenyl)-ethanol compounds and 2-chloro-6-methyl-3-aminophenol compounds | Horst Hoeffkes, Bernd Meinigke | 2001-09-04 |
| 6203579 | Use of 1-substituted isatins to dye fibers containing keratin | Hinrich Moeller, Horst Hoeffkes, Bernd Meinigke | 2001-03-20 |
| 6165230 | 1,4-diazacycloheptane derivatives and their use in hair oxidation dyes | Horst Hoeffkes, Bernd Meinigke | 2000-12-26 |
| 5891199 | Polymer dyestuffs and their use for dyeing fibres | Rolf Wachter, Joerg Kahre | 1999-04-06 |
| 5752984 | Use of 1,2,3,4-tetrahydroquinoxalines as oxidation dye precursors in oxidative coloring formulations | Georg Knuebel, Horst Hoeffkes, Bernd Meinigke | 1998-05-19 |
| 5685881 | Aromatic allylaminonitro compounds, hair dye compositions containing aromatic allylaminonitio compounds, and synthetic and natural fiber dyeing process | Horst Hoeffkes, Edgar Lieske, Iduna Matzik | 1997-11-11 |
| 5536843 | Synthesis of indoles by dehydrogenation of indolines | Georg Knuebel, Roswitha Michel | 1996-07-16 |
| 5246466 | Oxidation dyes | Edgar Lieske, Horst Hoeffkes | 1993-09-21 |
| 5104412 | Hair dyeing compositions | Horst Hoeffkes, Edgar Lieske | 1992-04-14 |
| 5089025 | Hair dye compositions and certain 1,2,3,4-tetrahydronitroquinoxalines useful therein | Edgar Lieske, Horst Hoeffkes | 1992-02-18 |
| 4976742 | META-aminophenols useful as oxidation hair dye couplers | Edgar Lieske, Norbert Maak | 1990-12-11 |