Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1061843 | Air filter assembly | Eric L. Ehrenberg | 2025-02-11 |
| D1061845 | Air filter assembly | Eric L. Ehrenberg | 2025-02-11 |
| D1061844 | Air filter assembly | Eric L. Ehrenberg | 2025-02-11 |
| 12134064 | Self-cleaning air filtration apparatus and method | Eric L. Ehrenberg | 2024-11-05 |
| 12134065 | Self-cleaning air filtration apparatus and method | Eric L. Ehrenberg | 2024-11-05 |
| 12005384 | Air quality monitoring and control system | Jeffrey L. MOREDOCK | 2024-06-11 |
| 11772028 | Radial seal filter | Eric L. Ehrenberg | 2023-10-03 |
| D987773 | Radial seal filter | Eric L. Ehrenberg | 2023-05-30 |
| D987774 | Radial seal filter | Eric L. Ehrenberg | 2023-05-30 |
| D987775 | Radial seal filter | Eric L. Ehrenberg | 2023-05-30 |
| D987026 | Radial seal filter | Eric L. Ehrenberg | 2023-05-23 |
| D987028 | Radial seal filter | Eric L. Ehrenberg | 2023-05-23 |
| D987027 | Radial seal filter | Eric L. Ehrenberg | 2023-05-23 |
| 11517841 | Air quality monitoring and control system | Jeffrey L. MOREDOCK | 2022-12-06 |
| 10850222 | Air quality monitoring and control system | Jeffrey L. MOREDOCK | 2020-12-01 |
| 9700828 | Versatile compact air precleaner, air cleaning method and disposable air filter cartridge for air precleaner | Eric L. Ehrenberg | 2017-07-11 |
| D768833 | Filter cartridge for air cleaner | Eric L. Ehrenberg | 2016-10-11 |
| D768277 | Filter cartridge for air cleaner | Eric L. Ehrenberg | 2016-10-04 |
| D767746 | Filter cartridge for air cleaner | Eric L. Ehrenberg | 2016-09-27 |
| 8945282 | Versatile compact air precleaner, air cleaning method and disposable air filter cartridge for air precleaner | Eric L. Ehrenberg | 2015-02-03 |
| 8657928 | Versatile compact air precleaner, air cleaning method and disposable air filter cartridge for air precleaner | Eric L. Ehrenberg | 2014-02-25 |
| D691252 | Filter cartridge for air cleaner | Eric L. Ehrenberg | 2013-10-08 |
| 8529324 | Powered air cleaning system and method of making same | Eric L. Ehrenberg | 2013-09-10 |
| 8216330 | Powered air cleaning system and air cleaning method | Eric L. Ehrenberg | 2012-07-10 |
| 8007565 | Powered air cleaning system and air cleaning method | — | 2011-08-30 |