Issued Patents All Time
Showing 25 most recent of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10191090 | Power transformers using optical current sensors | Alan Baker, Joseph H. Schaeffer, Michael J. Putt | 2019-01-29 |
| 8922194 | Master-slave fiber optic current sensors for differential protection schemes | Carl Glasow | 2014-12-30 |
| 8890508 | Adaptive filters for fiber optic sensors | Carl Glasow | 2014-11-18 |
| 7723977 | Optical sensor arrangement for electrical switchgear | Yves Doin, Cataldo Diaferia, Andrzej Klimek, Frederic Leclerc, Farnoosh Rahmatian | 2010-05-25 |
| 7633285 | Sensors and sensing methods for three-phase, gas insulated devices | Farnoosh Rahmatian | 2009-12-15 |
| 7493052 | Wide dynamic range sensor signal processing method & circuitry for analog and digital information signals | Farnoosh Rahmatian | 2009-02-17 |
| 7233746 | Wide dynamic range sensor signal processing method & circuitry for analog and digital information signals | James D. Hrabliuk, Farnoosh Rahmatian | 2007-06-19 |
| 7095910 | Wavelength division multiplexing coupling device | Charles Lange | 2006-08-22 |
| 7038786 | Optical interferometric sensor with measureand compensation that may selectively be used for temperature compensation and long term life degradation | — | 2006-05-02 |
| 6888981 | Wavelength division multiplexing coupler with loss element | Ren-Young Liu | 2005-05-03 |
| 6574015 | Optical depolarizer | Alexander Tselikov, Jeffrey P. Wilde | 2003-06-03 |
| 6545261 | Fiber optic alignment system and method | Alexander Tselikov | 2003-04-08 |
| 6434285 | Fiber optic difference current sensor | Glen A. Sanders | 2002-08-13 |
| 6356351 | Fiber-optic current sensor with improved isolation | — | 2002-03-12 |
| 6307632 | Magnetic field integrated fiber optic sensor with improved sensitivity | — | 2001-10-23 |
| 6285182 | Electro-optic voltage sensor | Charles Lange | 2001-09-04 |
| 6188811 | Fiber optic current sensor | — | 2001-02-13 |
| 6175410 | Fiber optic gyroscope having modulated suppression of co-propagating and counter-propagating polarization errors | Bogdan Szafraniec, Charles Lange, Lee K. Strandjord | 2001-01-16 |
| 6166816 | Combination fiber optic current/voltage sensor | — | 2000-12-26 |
| 6122415 | In-line electro-optic voltage sensor | — | 2000-09-19 |
| 6046810 | Kerr effect compensator for a fiber optic gyroscope | Glen A. Sanders, Ralph A. Bergh | 2000-04-04 |
| 6023331 | Fiber optic interferometric sensor and method by adding controlled amounts of circular birefringence in the sensing fiber | Shayne X. Short | 2000-02-08 |
| 5987195 | Fiber optics apparatus and method for accurate current sensing | — | 1999-11-16 |
| 5978084 | Open loop signal processing circuit and method for a fiber optic interferometric sensor | — | 1999-11-02 |
| 5696858 | Fiber Optics apparatus and method for accurate current sensing | — | 1997-12-09 |