Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9816154 | Process gas preparation apparatus for an industrial furnace system and an industrial furnace system for gas carburizing and hardening of metal workpieces utilizing same | Dirk Joritz, Nils Bernhagen, Aloys Heisterkamp, Markus Reinhold | 2017-11-14 |
| 9617611 | Quenching process and apparatus for practicing said process | Werner Hendrik Grobler, Craig A. Moller | 2017-04-11 |
| 8747731 | Device for conditioning process gases for the heat treatment of metallic work pieces in industrial furnaces | Werner Hendrik Grobler, Peter Haase, Jens Bechthold, Thorsten Requardt, Thomas Eversmann | 2014-06-10 |
| 8465603 | Method and device for controlling process gases for heat treatments of metallic materials/workpieces in industrial furnaces | Werner Hendrik Grobler, Thomas Eversmann, Jens Bechthold, Dirk Joritz, Nils Bernhagen | 2013-06-18 |
| 8333852 | Method for conditioning process gases for the heat treatment of metallic work pieces in industrial furnaces | Werner Hendrik Grobler, Peter Haase, Jens Bechthold, Thorsten Requardt, Thomas Eversmann | 2012-12-18 |
| 8313586 | Method and device for thermal treatment of metallic materials | Hendrik Grobler, Peter Haase | 2012-11-20 |
| 7559995 | Method for heat treatment of metal workpieces as well as a heat-treated workpiece | — | 2009-07-14 |
| 7255829 | Method and apparatus for treatment of metallic workpieces | Wolfgang Peter, Jan-Willem Bouwman | 2007-08-14 |
| 6406560 | Method for the thermal treatment of metal | Wolfgang Lerche, Michael Lohrmann | 2002-06-18 |
| 6328819 | Method and use of an apparatus for the thermal treatment, in particular nitriding treatment, of metal workpieces | Wolfgang Lerche, Michael Lohrmann | 2001-12-11 |
| 5851314 | Method for plasma carburization of metal workpieces | Winfried Grafen | 1998-12-22 |
| 5722825 | Device for heat-treating metallic work pieces in a vacuum | — | 1998-03-03 |
| 5717186 | Method and device for controlling the electric current density across a workpiece during heat treatment in a plasma | Hansjakob Drissen, Winfried Grafen | 1998-02-10 |
| 5352344 | Method and apparatus for measuring the oxygen potential of a heat-treatment furnance | Werner Gohring, Maz Roggatz | 1994-10-04 |
| 5052923 | Oven for partial heat treatment of tools | Wolfgang Peter | 1991-10-01 |
| 4881982 | Method for gaseous carburization of steel | Hans Pfau | 1989-11-21 |