Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12331935 | Cooking exhaust hood ventilation system | Kui-Chiu Kwok | 2025-06-17 |
| 11371719 | Cooking exhaust hood ventilation system | Kui-Chiu Kwok | 2022-06-28 |
| 10488056 | Cooking exhaust hood ventilation system | Kui-Chiu Kwok | 2019-11-26 |
| 9958168 | Cooking exhaust hood ventilation system and related methods | Bruce Lukens, Michael Borntrager | 2018-05-01 |
| 9702566 | Cooking exhaust hood ventilation system and related methods | Bruce Lukens, Michael Borntrager | 2017-07-11 |
| 8939142 | Commercial kitchen exhaust system | Kui-Chiu Kwok, Bruce Lukens | 2015-01-27 |
| 8505530 | Commercial kitchen exhaust system | Kui-Chiu Kwok, Bruce Lukens | 2013-08-13 |
| 8157894 | Impact filter with grease trap | Kui-Chiu Kwok | 2012-04-17 |
| 7947123 | Impact filter with grease trap | Kui-Chiu Kwok | 2011-05-24 |