Issued Patents All Time
Showing 51–69 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5247604 | Humidifier tank with leakage control cap | — | 1993-09-21 |
| D336511 | Portable humidifier | Richard M. O'Grady | 1993-06-15 |
| 5162088 | Evaporator apparatus | Johnson Peng | 1992-11-10 |
| D330074 | Portable electrical humidifier | Jui-Shang Wang, Frank Marino, Richard M. O'Grady | 1992-10-06 |
| 5143655 | Efficiently packaged humidifier device | Jui-Shang Wang, Frank Marino | 1992-09-01 |
| D328341 | Portable electric heater | — | 1992-07-28 |
| 5133044 | Portable humidifier | — | 1992-07-21 |
| 5131070 | Portable humidifier | Timothy Chen | 1992-07-14 |
| 5110263 | Convertible floor and window fan | — | 1992-05-05 |
| 5108663 | Humidifier with float activated water level responsive turn off | — | 1992-04-28 |
| D322121 | Portable humidifier | — | 1991-12-03 |
| 5067169 | Portable humidifier | — | 1991-11-19 |
| D321048 | Portable humidifier | — | 1991-10-22 |
| D320440 | Portable humidifier | — | 1991-10-01 |
| D318723 | Portable fan heater | — | 1991-07-30 |
| 5034162 | High capacity portable humidifier | — | 1991-07-23 |
| D309944 | Electric fan | — | 1990-08-14 |
| 4921639 | Ultrasonic humidifier | — | 1990-05-01 |
| D306063 | Ultrasonic humidifier | Richard M. O'Grady | 1990-02-13 |