Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8057567 | Filter medium and breather filter structure | David Meline Webb, David E. Carlson, Robert M. Rogers | 2011-11-15 |
| 8021457 | Filter media and structure | Linda M. Olson | 2011-09-20 |
| 7985344 | High strength, high capacity filter media and structure | Linda M. Olson | 2011-07-26 |
| 7314497 | Filter medium and structure | Brad E. Kahlbaugh, Linda M. Olson | 2008-01-01 |
| 7309372 | Filter medium and structure | Brad E. Kahlbaugh, Linda M. Olson | 2007-12-18 |
| 5250094 | Ceramic filter construction and method | H. Young Chung, Marty Barris | 1993-10-05 |