Issued Patents All Time
Showing 1–25 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6133716 | High-efficiency high-power uninterrupted power system | — | 2000-10-17 |
| 5821630 | Flywheel-speed sensing for control of an emergency-power engine | — | 1998-10-13 |
| 5358388 | Noise reduction at the second order frequency | Danny M. Wakefield, Donald R. Zimmerer, David Malaney | 1994-10-25 |
| RE34746 | Open-center steering control unit with flow amplification | Dwight B. Stephenson, Donald M. Haarstad | 1994-10-04 |
| 5019983 | Automatic steering apparatus using reflected signals | Dwight B. Stephenson, Oliver W. Johnson | 1991-05-28 |
| 4967362 | Automatic steering apparatus for crop vehicle | Dwight B. Stephenson, Oliver W. Johnson | 1990-10-30 |
| 4958493 | Open-center steering control unit with flow amplification | Dwight B. Stephenson, Donald M. Haarstad | 1990-09-25 |
| 4949584 | Apparatus for measuring depth of a fluid chamber | Robert W. Lade, Joseph C. Zuercher | 1990-08-21 |
| 4936143 | Cylinders having piston position measurement | Erlen B. Walton, Robert W. Lade | 1990-06-26 |
| 4821205 | Seismic isolation system with reaction mass | Arnold A. Weiss | 1989-04-11 |
| 4706183 | Bridge-type frequency multiplier | Robert W. Sackett, Jan Sedivy, Michael E. Taken | 1987-11-10 |
| 4706184 | Fractional frequency multiplier | Robert W. Sackett, Jan Sedivy, Michael E. Taken | 1987-11-10 |
| 4706175 | Single phase to polyphase bridge-type frequency multiplier | Robert W. Sackett, Jan Sedivy, Michael E. Taken | 1987-11-10 |
| 4706174 | Single phase to multiphase frequency multiplier | Robert W. Sackett, Jan Sedivy, Michael E. Taken | 1987-11-10 |
| 4675979 | Method for making horizontally layered momom tunnel device | Robert W. Lade, James A. Benjamin | 1987-06-30 |
| 4675980 | Method for making vertically layered MOMOM tunnel device | Robert W. Lade, James A. Benjamin | 1987-06-30 |
| 4670764 | Multi-channel power JFET with buried field shaping regions | James A. Benjamin, Robert W. Lade | 1987-06-02 |
| 4668304 | Dopant gettering semiconductor processing by excimer laser | Steven R. Schachameyer, James A. Benjamin, John B. Pardee, Lyle O. Hoppie | 1987-05-26 |
| 4642665 | Vertically layered MOMOM tunnel device | Robert W. Lade, James A. Benjamin | 1987-02-10 |
| 4635084 | Split row power JFET | James A. Benjamin, Robert W. Lade | 1987-01-06 |
| 4633278 | Horizontally layered MOMOM notch tunnel device | Robert W. Lade, James A. Benjamin | 1986-12-30 |
| 4633281 | Dual stack power JFET with buried field shaping depletion regions | James A. Benjamin, Robert W. Lade | 1986-12-30 |
| 4633492 | Plasma pinch X-ray method | Arnold A. Weiss, Louis Cartz, Gordon B. Spellman, Stanley V. Jaskolski, Peter H. Wackman, deceased | 1986-12-30 |
| 4624533 | Solid state display | Robert W. Lade, James A. Benjamin, Stanley V. Jasolski, Gordon B. Spellman | 1986-11-25 |
| 4622568 | Planar field-shaped bidirectional power FET | James A. Benjamin, Robert W. Lade | 1986-11-11 |