Kupfer; Friedrich
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kupfer; Friedrich.The latest application filed is for "filter element and method for manufacturing a filter element".
- Kupfer; Friedrich - Marklkofen DE
- Kupfer; Friedrich - Poxau DE
| Patent | Date |
|---|---|
| Filter Element and Method for Manufacturing a Filter Element App 20220288525 - Kupfer; Friedrich | 2022-09-15 |
| Air Filter Element Having a Circumferentially Protruding Clean Air Seal, Filter Housing and Air Filter App 20210121807 - Neef; Pascal ; et al. | 2021-04-29 |
| Filter Element, Housing for a Filter System, and Filter System Comprising a Filter Element and a Housing App 20210086119 - Neef; Pascal ; et al. | 2021-03-25 |
| Filter Element and Filter System Having a Filter Element App 20210069630 - Neef; Pascal ; et al. | 2021-03-11 |
| Filter element Grant 9,205,358 - Kaufmann , et al. December 8, 2 | 2015-12-08 |
| Filter device having an annular filter element Grant 9,101,864 - Neef , et al. August 11, 2 | 2015-08-11 |
| Filter Body App 20140223869 - Kaufmann; Michael ; et al. | 2014-08-14 |
| Filter Element App 20140224129 - Kaufmann; Michael ; et al. | 2014-08-14 |
| Filter Device Having an Annular Filter Element App 20130340399 - Neef; Pascal ; et al. | 2013-12-26 |
| Filter element and filter system Grant 8,287,612 - Gillenberg , et al. October 16, 2 | 2012-10-16 |
| Filter Element And Filter System App 20120210683 - Gillenberg; Eric ; et al. | 2012-08-23 |
| Filter element and filter system Grant 8,142,533 - Gillenberg , et al. March 27, 2 | 2012-03-27 |
| Filter Element and Filter System App 20100263339 - Steins; Oliver ; et al. | 2010-10-21 |
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