Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6811694 | Liquid filter | — | 2004-11-02 |
| 6746604 | Liquid filter | — | 2004-06-08 |
| 6723149 | Separator for liquids comprising a separating cartridge, particularly for separating oil from crankcase gases | Volker Ernst, Heinz Jawurek | 2004-04-20 |
| 6709588 | Filter for internal combustion engine fuels | Jaroslav Pavlin | 2004-03-23 |
| 6644624 | Liquid discharge assembly | — | 2003-11-11 |
| 6610203 | Liquid filter, particularly for oil or fuel in an internal combustion engine | — | 2003-08-26 |
| 6558536 | Liquid filter with a cooler | Martin Weindorf, Herbert Dreher | 2003-05-06 |
| 6517710 | Structural assembly with an oil filter for an internal combustion engine | Roland Hartmann, Hans-Werner Holch | 2003-02-11 |
| 6485637 | Liquid filter with a drain for residual liquid | Martin Weindorf | 2002-11-26 |
| 6422305 | Liquid cooling system | — | 2002-07-23 |
| 6340011 | Intake duct for an internal combustion engine | — | 2002-01-22 |
| 6234194 | Valve | Jaroslav Pavlin | 2001-05-22 |
| 6224758 | Filter assembly | Jaroslav Pavlin, Roland Wiederhold | 2001-05-01 |
| 6177003 | Filter with safety element for filtering engine oil | Roland Wiederhold | 2001-01-23 |
| 5928511 | Oil filter with housing drain channel | Karl-Heinz Messner | 1999-07-27 |
| 5695633 | Oil filter support tube and housing cover with snap detent connection therebetween | Volker Ernst, Arthur Klotz | 1997-12-09 |
| 5374355 | Filter for fuels or lubricants of an internal combustion engine | Heinz Habiger, Reinhard Oelpke, Erich Poldner | 1994-12-20 |
| 5292432 | Filter for fluids | Michael Wolf | 1994-03-08 |