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Patent applications and USPTO patent grants for Madden; Michael A..The latest application filed is for "filter media and elements".
Patent | Date |
---|---|
Filter Media And Elements App 20220212132 - Gao; Qiong ;   et al. | 2022-07-07 |
Filter medium and structure Grant RE49,097 - Kahlbaugh , et al. June 7, 2 | 2022-06-07 |
Filter media and elements Grant 11,253,802 - Gao , et al. February 22, 2 | 2022-02-22 |
Filter Medium And Breather Filter Structure App 20200330912 - Rogers; Robert M. ;   et al. | 2020-10-22 |
Filter medium and breather filter structure Grant 10,610,813 - Rogers , et al. | 2020-04-07 |
Filter medium and structure Grant RE47,737 - Kahlbaugh , et al. Nov | 2019-11-26 |
Filter Media And Elements App 20190336897 - Gao; Qiong ;   et al. | 2019-11-07 |
Filter media and elements Grant 10,357,730 - Gao , et al. July 23, 2 | 2019-07-23 |
Filter medium and breather filter structure Grant 9,795,906 - Rogers , et al. October 24, 2 | 2017-10-24 |
Filter Medium And Breather Filter Structure App 20170225105 - Rogers; Robert M. ;   et al. | 2017-08-10 |
Filter media and elements Grant 9,474,994 - Gao , et al. October 25, 2 | 2016-10-25 |
Filter Media And Elements App 20160129381 - Gao; Qiong ;   et al. | 2016-05-12 |
Media, Filter Element Using Corrugated Media Sheet, Corrugated Sheet, And Methods App 20090102094 - Golden; Patrick ;   et al. | 2009-04-23 |
Filter element using corrugated media sheet Grant 7,488,365 - Golden , et al. February 10, 2 | 2009-02-10 |
Filter element using corrugated media sheet App 20050252182 - Golden, Patrick ;   et al. | 2005-11-17 |
Method of making a filter device Grant 6,168,681 - Bellefeuille , et al. January 2, 2 | 2001-01-02 |
Filter device Grant 5,869,009 - Bellefeuille , et al. February 9, 1 | 1999-02-09 |
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