Patents
.us
Search
Marketplace
Patent My Idea
Patents
/
Inventors
Michael A Madden
Woodbury, MN
US
4 patents
4 Patents
US12528038
2026
Filter Media and Elements
Donaldson Company, Inc.
0 cites
US12172111
2024
Filter Medium and Breather Filter Structure
Donaldson Company, Inc.
0 cites
USRE050226
2024
Filter Medium and Structure
Donaldson Company, Inc.
0 cites
US12023613
2024
Filter Media and Elements
Donaldson Company, Inc.
0 cites