Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11911834 | Drilling tool and method for producing a borehole | Christian Beer, Thomas Funk, Dietmar Hechtle, Manuel LEONHARD, Martin Steinbach | 2024-02-27 |
| 9248511 | Drilling tool and method for drilling | — | 2016-02-02 |
| 9199315 | Twist drill and method for producing a twist drill which method includes forming a flute of a twist drill | Dieter Muhlfriedel, Jürgen Schwägerl | 2015-12-01 |
| 8992143 | Modular drill | Helmut Glimpel | 2015-03-31 |
| 8858134 | Drilling tool having point thinning | Helmut Glimpel | 2014-10-14 |
| 8807888 | Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert | Dieter Muhlfriedel, Jürgen Schwägerl, Ruy Frota de Souza, Michael D. Shultz, Michael R. McCormick +1 more | 2014-08-19 |
| 8550756 | Drill bit for drilling having at least two cutting edges, each with two cutting portions and a non-cutting portion between the two cutting portions | Ullrich Krenzer, Herbert Rudolf Kauper, Juergen Schwaegerl | 2013-10-08 |
| 8366358 | Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert | Dieter Muhlfriedel, Jürgen Schwägerl, Ruy Frota de Souza, Michael D. Shultz, Michael R. McCormick +1 more | 2013-02-05 |
| 8043030 | Tool holder, drill holder, reamer holder, and milling cutter holder | Friedrich Oberländer | 2011-10-25 |
| 7832967 | Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert | Dieter Muhlfriedel, Jürgen Schwägerl, Ruy Frota de Souza, Michael D. Shultz, Michael R. McCormick +1 more | 2010-11-16 |
| 7591617 | Twist drill with a replaceable cutting insert and a rotary cutting tool with a replaceable cutting insert | Dieter Muhlfriedel | 2009-09-22 |
| 7476067 | Drill bit | Ulrich Krenzer, Rainer Büttner | 2009-01-13 |
| 7360974 | Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert | Dieter Muhlfriedel, Jürgen Schwägerl, Ruy Frota de Souza, Michael D. Shultz, Michael R. McCormick +1 more | 2008-04-22 |
| 7306410 | Twist drill with a replaceable cutting insert and a rotary cutting tool with a replaceable cutting insert | Dieter Muhlfriedel | 2007-12-11 |
| 7201543 | Twist drill and method for producing a twist drill which method includes forming a flute of a twist drill | Dieter Muhlfriedel, Jürgen Schwägerl | 2007-04-10 |
| 7101125 | Twist drill | Jerome C. Hanna, Tilo Krieg, Larry R. Meenan, Michael D. Shultz | 2006-09-05 |
| 7048480 | Twist drill with a replaceable cutting insert and a rotary cutting tool with a replaceable cutting insert | Dieter Muhlfriedel | 2006-05-23 |
| 6988859 | Drill bit and method for grinding a drill bit | Dieter Muhlfriedel | 2006-01-24 |
| 6688817 | Drill for drilling, a method for making a drill for drilling, and a cutting tool | Dieter Muhlfriedel, Karl Heinz Wendt | 2004-02-10 |
| 6309149 | Twist drill for dry drilling | Jürgen Seidel | 2001-10-30 |
| 6210083 | Method of providing a cutting tool with lubricating coolant | Dirk Kammermeier | 2001-04-03 |
| 6116825 | Rotating cutting tool with a coolant passage and a method of providing it with coolant | Dirk Kammermeier | 2000-09-12 |
| 6045301 | Drill with cooling-lubricant channel | Dirk Kammermeier | 2000-04-04 |
| 5915895 | Drilling and chamfering tool | Horst Manfred Jäger, Michael Schuffenhauer, Gebhard Muller, Ulrich Krenzer | 1999-06-29 |