Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D485339 | Air filter element having attached cover member | William Nyman, Bruce Allen Boehrs | 2004-01-13 |
| D467654 | Air filter element having attached cover member | William Nyman, Bruce Allen Boehrs | 2002-12-24 |
| 6419718 | Cover member and air cleaner construction; use; and, method of assembly | William Nyman, Bruce Allen Boehrs | 2002-07-16 |
| 4367950 | Combined aerosol monitor and calibrateable light ray scattering reference rod | — | 1983-01-11 |
| 4322230 | Unitized gas-particulate filter and housing | Donald W. Schoen | 1982-03-30 |