Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6994743 | Two stage air filter | Kyle Andrew Brownell, Alan Lorenz Breitenfeldt, Emery W. Neitzel | 2006-02-07 |
| 6797041 | Two stage air filter | Kyle Andrew Brownell, Alan Lorenz Breitenfeldt, Emery W. Neltzel | 2004-09-28 |