Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5504789 | Phase detetion method for flow measurement and other applications | Hyok S. Lew, Yon S. Lew | 1996-04-02 |
| 5501106 | Inertia force flowmeter with pivotally supported vibrating conduit | Hyok S. Lew, Yon S. Lew | 1996-03-26 |
| 5493915 | Fluid dynamic torsional vortex sensor | Syok S. Lew, Yon S. Lew | 1996-02-27 |
| 5460053 | Electronic method for mass flow measurement | Hyok S. Lew, Yon S. Lew | 1995-10-24 |
| 5456121 | Pivotable vane flowmeter with capacitive position sensor | Hyok S. Lew, Yon S. Lew | 1995-10-10 |
| 5450760 | Turbine flowmeter with capacitive transducer | Hyok S. Lew, Yon S. Lew | 1995-09-19 |
| 5440926 | Folding-unfolding rotary vane meter-motor-pump | Hyok S. Lew, Hyon S. Lew | 1995-08-15 |
| 5417118 | Magnetic flowmeter determining flow rate from phase angle difference | Hyok S. Lew, Yon S. Lew | 1995-05-23 |
| 5269668 | Folding-unfolding rotating flap meter-motor-pump | Hyok S. Lew, Hyon S. Lew | 1993-12-14 |
| 5247836 | Convective electric current flowmeter | Hyok S. Lew, Hyon S. Lew | 1993-09-28 |
| 5238373 | Extending-retracting vane meter-motor-pump | Hyok S. Lew | 1993-08-24 |
| 5029669 | Rope climbing and sliding device | Hyon S. Lew, Hyok S. Lew | 1991-07-09 |
| 4793436 | Push-pull sky-ride vertical mobility device | Hyok S. Lew, Hyon S. Lew | 1988-12-27 |
| 4702348 | Sky-ride vertical mobility system | Hyok S. Lew, Hyon S. Lew | 1987-10-27 |
| 4679656 | Sky-ride vertical mobility device | Hyok S. Lew, Hyon S. Lew | 1987-07-14 |
| 4601474 | Self-retrieving attack ball | Hyok S. Lew, Hyon S. Lew | 1986-07-22 |
| 4598792 | Sky-ride vertical mobility system | Hyok S. Lew, Hyon S. Lew | 1986-07-08 |
| 4598793 | Sky-ride emergency escape system | Hyok S. Lew, Hyon S. Lew | 1986-07-08 |
| 4582342 | Pediroller board | Hyon S. Lew, Yon S. Lew | 1986-04-15 |