MM

Michael A. Madden

DC Donaldson Company: 14 patents #84 of 695Top 15%
📍 Woodbury, MN: #297 of 1,562 inventorsTop 20%
🗺 Minnesota: #5,333 of 52,454 inventorsTop 15%
Overall (All Time): #339,086 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
12172111 Filter medium and breather filter structure Robert M. Rogers, Keh B. Dema, Brad E. Kahlbaugh, Linda M. Olson, Chuanfang Yang +5 more 2024-12-24
RE50226 Filter medium and structure Brad E. Kahlbaugh, Keh B. Dema, Linda M. Olson, Joe Israel, Derek O. Jones +5 more 2024-12-03
12023613 Filter media and elements Qiong Gao, Gregory S. Tronnes, Rakesh Yadav 2024-07-02
11504663 Filter medium and breather filter structure Robert M. Rogers, Keh B. Dema, Brad E. Kahlbaugh, Linda M. Olson, Chuanfang Yang +5 more 2022-11-22
RE49097 Filter medium and structure Brad E. Kahlbaugh, Keh B. Dema, Linda M. Olson, Joe Israel, Derek O. Jones +5 more 2022-06-07
11253802 Filter media and elements Qiong Gao, Gregory S. Tronnes, Rakesh Yadav 2022-02-22
10610813 Filter medium and breather filter structure Robert M. Rogers, Keh B. Dema, Brad E. Kahlbaugh, Linda M. Olson, Chuanfang Yang +5 more 2020-04-07
RE47737 Filter medium and structure Brad E. Kahlbaugh, Keh B. Dema, Linda M. Olson, Joe Israel, Derek O. Jones +5 more 2019-11-26
10357730 Filter media and elements Qiong Gao, Gregory S. Tronnes, Rakesh Yadav 2019-07-23
9795906 Filter medium and breather filter structure Robert M. Rogers, Keh B. Dema, Brad E. Kahlbaugh, Linda M. Olson, Chuanfang Yang +5 more 2017-10-24
9474994 Filter media and elements Qiong Gao, Gregory S. Tronnes, Rakesh Yadav 2016-10-25
7488365 Filter element using corrugated media sheet Patrick Golden 2009-02-10
6168681 Method of making a filter device Cynthia D. Bellefeuille, Andrew J. Dallas, M. E. Wright, Suzan K. Nunnink 2001-01-02
5869009 Filter device Cynthia D. Bellefeuille, Andrew J. Dallas, M. E. Wright, Suzan K. Nunnink 1999-02-09