Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5796629 | Protective relaying system comprising numerical comparator-based line differential processing circuitry | Eric A. Udren | 1998-08-18 |
| 5764044 | Process for producing time dependent waveforms of positive and negative symmetrical sequence components of a power system's voltages or currents | — | 1998-06-09 |
| 5659242 | Apparatus for comparing two waveforms in real time | — | 1997-08-19 |
| 5576618 | Process and apparatus for comparing in real time phase differences between phasors | — | 1996-11-19 |