Issued Patents All Time
Showing 1–25 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9758031 | Radiator grille arrangement for a vehicle | Stephen Edwards, Holger JAKOBS | 2017-09-12 |
| 7959743 | Lithium salts of fatty alcohol sulphates for cleaning boreholes, boring devices and borings | Diana Maeker, Nadja Herzog | 2011-06-14 |
| 7741248 | Borehole treating substance containing ether carboxylic acids | Nadja Herzog, Ansgar Behler, Jens Hartmann | 2010-06-22 |
| 7666820 | Borehole treatment agent containing low-toxic oil phase | Nadja Herzog, Stephan von Tapavicza | 2010-02-23 |
| 7638466 | Thinners for invert emulsions | Jeff Kirsner, Kimberly Burrows | 2009-12-29 |
| 7435706 | Thinners for invert emulsions | Jeff Kirsner, Kimberly Burrows | 2008-10-14 |
| 6806235 | Lubricants for drilling fluids | Claus-Peter Herold, Frank Bongardt, Nadja Herzog, Stephan von Tapavicza | 2004-10-19 |
| 6716799 | Use of selected fatty alcohols and their mixtures with carboxylic acid esters as lubricant components in water-based drilling fluid systems for soil exploration | Claus-Peter Herold, Stephan von Tapavicza | 2004-04-06 |
| 6596670 | Use of selected oleophilic ethers in water-based drilling fluids of the O/W emulsion type and corresponding drilling fluids with improved ecological acceptability | Claus-Peter Herold, Stephan von Tapavicza, Gerhard Stoll, Rainer Jeschke, Johann F. Fues | 2003-07-22 |
| 6508932 | Filter with valve having a hydrophobic coating | Helmut Storz | 2003-01-21 |
| 6423108 | Air filter for an internal combustion engine | — | 2002-07-23 |
| 6350788 | Low-foam surfactant concentrates for use in the domain of plant growth stimulation | Claus-Peter Herold, Stephan von Tapavicza, Heinz Boettcher | 2002-02-26 |
| 6289989 | Use of biodegradable alcoxylation products for cleaning boreholes, boring instruments or borings | Claus-Peter Herold, Berthold Schreck, Stefan Podubrin, Andreas Heidbreder | 2001-09-18 |
| 6211119 | Multiphase lubricant concentrates for use in water based systems in the field of exploratory soil drilling | Claus-Peter Herold, Thomas Foerster, Stephan von Tapavicza, Marcus Claas | 2001-04-03 |
| 6180572 | Aqueous swellable compositions of guar gum and guar gum derivatives in oleophilic liquids and their use | Claus-Peter Herold, Stephan von Tapavicza | 2001-01-30 |
| 6165946 | Process for the facilitated waste disposal of working substances based on water-in-oil invert emulsions | Claus-Peter Herold, Thomas Foerster, Stephan von Tapavicza, Johann F. Fues | 2000-12-26 |
| 6159261 | Filter cartridge | Walter Binder | 2000-12-12 |
| 6148806 | Valve unit | — | 2000-11-21 |
| 6122860 | Method of boosting surface consolidation of soil threatened by erosion | Stefan Von Tapavicza, Claus-Peter Herold, Heinz Boettcher, Frank Burbach | 2000-09-26 |
| 6044829 | Heating arrangement | Thomas Butz, Hans-Werner Holch | 2000-04-04 |
| 6041748 | Pipe module | Klaus Waltenberg | 2000-03-28 |
| 6022833 | Multicomponent mixtures for use in geological exploration | Claus-Peter Herold, Thomas Foerster, Stephan von Tapavicza, Johann F. Fues, Marcus Claas | 2000-02-08 |
| 5947072 | Inlet device for an internal combustion engine | Roland Loy, Heinz Andress | 1999-09-07 |
| 5901681 | Air filter | — | 1999-05-11 |
| 5869434 | Free-flowing borehole servicing preparations containing linear .alpha.-olefins, more patricularly corresponding drilling fluids | Claus-Peter Herold, Matthias Fies, Stephan von Tapavicza | 1999-02-09 |