Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10258910 | Fluid flow controller and filter assembly with fluid flow controller | Timothy L. Memmer | 2019-04-16 |
| 10118112 | Fluid filter | Donald W. Baldwin | 2018-11-06 |
| 9884278 | Fluid flow controller and filter assembly with fluid flow controller | Timothy L. Memmer | 2018-02-06 |
| 9623350 | Extended-life oil management system and method of using same | Ronald P. Rohrbach, Brian K. Artz | 2017-04-18 |
| 9539531 | Additive dispersing filter and method | Ronald P. Rohrbach, Zafar Hussain | 2017-01-10 |
| 9486718 | Fluid filter | Donald W. Baldwin | 2016-11-08 |
| 8926845 | Additive dispersing filter and method | Ronald P. Rohrbach, Zafar Hussain | 2015-01-06 |
| 8815087 | Fluid filter | Michael S. Lynch | 2014-08-26 |
| 8685243 | Fluid filter | Michael S. Lynch | 2014-04-01 |
| 8658047 | Additive dispersing filter and method | Zafar Hussain | 2014-02-25 |
| 8216461 | Method of adding fuel additive to diesel fuel | Scott J. Tabb, Ronald P. Rohrbach, Gary B. Zulauf, Peter D. Unger, Weston H. Gerwin +1 more | 2012-07-10 |
| 8171774 | Hydrocarbon liquid-seal device and a hydrocarbon vapor testing system having the hydrocarbon liquid-seal device | — | 2012-05-08 |
| 8021558 | Additive dispersing filter and method of making | Derek Eilers, Daniel Auxter, Michael S. Lynch, Gary B. Zulauf | 2011-09-20 |
| 7998346 | Additive dispersing filter and method of making | Zafar Hussain | 2011-08-16 |
| 7938960 | Fuel filter and method of adding fuel additive to diesel fuel | Scott J. Tabb, Ronald P. Rohrbach, Gary B. Zulauf, Peter D. Unger, Weston H. Gerwin +1 more | 2011-05-10 |
| 7931817 | Additive dispensing device and a thermally activated additive dispensing filter having the additive dispensing device | — | 2011-04-26 |
| 7811462 | Additive dispersing filter and method of making | Derek Eilers, Daniel Auxter, Michael S. Lynch, Gary B. Zulauf | 2010-10-12 |
| 7662285 | Filter diaper and method | — | 2010-02-16 |
| 7182863 | Additive dispersing filter and method of making | Derek Eilers, Daniel Auxter, Gary B. Zulauf, Michael S. Lynch, Philip P. Treier | 2007-02-27 |
| 7018531 | Additive dispensing cartridge for an oil filter, and oil filter incorporating same | Derek Eilers, Daniel Auxter, Michael S. Lynch, Gary B. Zulauf | 2006-03-28 |
| 6651823 | Plastic filter housing formed from multiple sections and having a skewed weld seam, and filter incorporating same | Timothy L. Memmer | 2003-11-25 |
| 6505597 | Cleansing oil filter containing quick-release liquid antioxidant/additive solution, and method of using same to convert an engine from petroleum-based oil to botanically-based oil | Gary B. Zulauf, Ronald P. Rohrbach | 2003-01-14 |
| 6045692 | Oil filter to introduce anti-wear additives into engine lubricating system | Charlie Probasco, Robert Voigt | 2000-04-04 |
| 5725031 | Method for introducing PTFE into a spin-on oil filter | Charlie Probasco, Robert Voigt | 1998-03-10 |
| 5698059 | Filter and method for manufacturing filters | Edmond H. Cote, Jr., Steven Arthur Hartzell, Charles Allen Probasco, Steven W. Quist | 1997-12-16 |