Issued Patents 1989
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888991 | Relative motion sensor | — | 1989-12-26 |
| 4884473 | Dual epicyclic speed changer | — | 1989-12-05 |
| 4884458 | High sensitivity vortex shedding flowmeter | — | 1989-12-05 |
| 4884441 | Variable capacity flowmeter | — | 1989-12-05 |
| 4882935 | Convective attenuation flowmeter | — | 1989-11-28 |
| 4879910 | Torsional vibration convective inertia force flowmeter | — | 1989-11-14 |
| 4879909 | Vortex shedding flowmeter | — | 1989-11-14 |
| 4872360 | Moving cylinder actuator | Hyon S. Lew | 1989-10-10 |
| 4850410 | Continuous snow chain | — | 1989-07-25 |
| 4841810 | Dual orbiting gear planetary drive | — | 1989-06-27 |
| 4840071 | Convective attenuation flowmeter | — | 1989-06-20 |
| 4835436 | Piezoelectric impulse sensor | — | 1989-05-30 |
| 4829905 | Decoy deploying ICBM warhead | Michael Stranahan | 1989-05-16 |
| 4829832 | Convective inertia force flowmeter | — | 1989-05-16 |
| 4826227 | Disposable coupled chopsticks | — | 1989-05-02 |
| 4824019 | Lawn-border sprinkler | — | 1989-04-25 |
| 4813289 | Convective attenuation flowmeter | — | 1989-03-21 |
| 4809760 | Self-coiling partition | — | 1989-03-07 |
| 4807408 | Geodesically reinforced honeycomb structures | Michael Stranahan | 1989-02-28 |
| 4807494 | Stepwise variable speed planetary drive | — | 1989-02-28 |
| 4807481 | Three-in-one vortex shedding flowmeter | — | 1989-02-28 |
| 4803870 | Vortex shedding flowmeter with mechanically amplifying pressure sensor | — | 1989-02-14 |
| 4802651 | Ball plug valve | Yon S. Lew | 1989-02-07 |
| 4798091 | Dual S-tube Coriolis force flowmeter | — | 1989-01-17 |
| 4796472 | Level detector with multiple magnetically activated switches | — | 1989-01-10 |