Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12415153 | Filter element and filter system | Michael Kaufmann, Klaus-Dieter Ruhland | 2025-09-16 |
| 12345224 | Muffler and filter system | Michael Kaufmann, Klaus-Dieter Ruhland | 2025-07-01 |
| 11986758 | Filter element and filter arrangement | Beate Brandt | 2024-05-21 |
| 11890567 | Filter holder, filter element and filter arrangement | Beate Brandt, Manfred Winter, Duc Cuong Nguyen, Karlheinz Muenkel, Volker Greif | 2024-02-06 |
| 11738296 | Filter device, in particular for gas filtration | — | 2023-08-29 |
| 11725615 | Secondary filter element and filter arrangement | Michael Kaufmann, Klaus-Dieter Ruhland | 2023-08-15 |
| 11701607 | Filter element and filter arrangement | Beate Brandt | 2023-07-18 |
| 11541336 | Filter element, filter system comprising a filter element, and method for producing a filter element | Duc Cuong Nguyen | 2023-01-03 |
| 11213770 | Filter element for a machine tool, machine tool, use, and exchange method | Alexander Meier, Norbert Maurer, Andreas Panni, Michael Schulze | 2022-01-04 |
| 10799821 | Air filter with minimal pressure loss | Steffen Ackermann, Andrew K. Glynn, Suresh Aragbatagangapa Eswarapa | 2020-10-13 |
| 10583385 | Filter holder, filter element and filter arrangement | Beate Brandt, Andreas Panni | 2020-03-10 |
| 10508623 | Filter system with an insulating body, insulating body, and method for manufacturing an insulating body | Andrew K. Glynn, Benoit Tronet | 2019-12-17 |
| 10493391 | Filter module with a filter element and with a fastening frame and air filter device with a filter module | Oliver Luley, Andreas Kloss | 2019-12-03 |
| 10427080 | Filter holder, filter element and filter arrangement | Beate Brandt, Manfred Winter, Duc Cuong Nguyen, Karlheinz Muenkel, Volker Greif | 2019-10-01 |
| 10363506 | Filter element and filter arrangement | Beate Brandt | 2019-07-30 |
| 10350530 | Filter holder and filter arrangement | Thomas Grein, Volker Greif | 2019-07-16 |
| 6157189 | Magnetic read/write of reference track in contact start-stop testing of magnetic disks | Yuriy Belov, Edmond Sardariani | 2000-12-05 |
| 5923490 | High speed searching of digital cassette | Gerald J. Joyce, James V. Schimandle | 1999-07-13 |
| 5447278 | Tape drive and cassette with precise registration | Marc J. Lalouette, Kenneth A. Weza, Peter D. Doninelli | 1995-09-05 |
| 5433397 | High speed tape transport system | Marc J. Lalouette, Kenneth A. Weza, Peter D. Doninelli | 1995-07-18 |
| 5121057 | Media flaw detection apparatus for a magnetic disk drive with squaring and summing of in-phase and quadrature-phase detected signals | William D. Huber, Rod J. Swanson, Nicholas J. Bucska | 1992-06-09 |