Inventor
James N. Blake
Inventor
Paradise Valley, AZ, US
Overview
Patents· 36 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Rprimary
G01RMeasuring electric variables38%
G01CMeasuring distances, levels or bearings21%
G02BOptical elements, systems or apparatus15%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein6%
G01DMeasuring not specially adapted for a specific variable4%
H01HElectric switches4%
H02BBoards, substations or switching arrangements for the supply or distribution of electric power4%
G01BMeasuring length, thickness or similar linear dimensions2%
G01FMeasuring volume, volume flow, mass flow or liquid level2%
G11BInformation storage based on relative movement between record carrier and transducer2%
PatentTitleYear
10,191,090Power transformers using optical current sensors20198,922,194'Master-slave fiber optic current sensors for differential protection schemes'20148,890,508'Adaptive filters for fiber optic sensors'20147,723,977'Optical sensor arrangement for electrical switchgear'20107,633,285'Sensors and sensing methods for three-phase, gas insulated devices'20097,493,052'Wide dynamic range sensor signal processing method & circuitry for analog and digital information signals'20097,233,746'Wide dynamic range sensor signal processing method & circuitry for analog and digital information signals'20077,095,910'Wavelength division multiplexing coupling device'20067,038,786'Optical interferometric sensor with measureand compensation that may selectively be used for temperature compensation and long term life degradation'20066,888,981'Wavelength division multiplexing coupler with loss element'20056,574,015'Optical depolarizer'20036,545,261'Fiber optic alignment system and method'20036,434,285'Fiber optic difference current sensor'20026,356,351'Fiber-optic current sensor with improved isolation'20026,307,632'Magnetic field integrated fiber optic sensor with improved sensitivity'20016,285,182'Electro-optic voltage sensor'20016,188,811'Fiber optic current sensor'20016,175,410'Fiber optic gyroscope having modulated suppression of co-propagating and counter-propagating polarization errors'20016,166,816'Combination fiber optic current/voltage sensor'20006,122,415'In-line electro-optic voltage sensor'20006,046,810'Kerr effect compensator for a fiber optic gyroscope'20006,023,331'Fiber optic interferometric sensor and method by adding controlled amounts of circular birefringence in the sensing fiber'20005,987,195'Fiber optics apparatus and method for accurate current sensing'19995,978,084'Open loop signal processing circuit and method for a fiber optic interferometric sensor'19995,696,858'Fiber Optics apparatus and method for accurate current sensing'19975,644,397'Fiber optic interferometric circuit and magnetic field sensor'19975,608,524'Coherence collapsed multimode source for a fiber optic gyro'19975,469,257'Fiber optic gyroscope output noise reducer'19955,381,230'Emission source spectrum stabilizer'19955,377,283'Configuration control of mode coupling errors'19945,327,213'Configuration control of mode coupling errors'19945,289,258'Fiber optic gyroscope modulation error reduction'19945,148,236'Demodulation reference signal source'19925,022,732'Fiber optic intermode coupling single sideband frequency shifter'19914,915,468'Apparatus using two-mode optical waveguide with non-circular core'19904,832,437'Fiber optic inter-mode coupling single side band frequency shifter'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989Based in Mountain View, CA, US· patent location history
1990–1994Based in Phoenix, AZ, US· patent location history
1992–2001Patents assigned to HONEYWELL INC (9)· patent assignee history
1994–2000Based in College Station, TX, US· patent location history
1997–2003Patents assigned to TEXAS A & M UNIV SYS (8)· patent assignee history
1999–2002Based in Scottsdale, AZ, US· patent location history
2003–2019Based in Paradise Valley, AZ, US· patent location history
2006–2010Patents assigned to NXTPHASE T & D CORP (4)· patent assignee history
2007–2014Patents assigned to BLAKE JAMES N (3)· patent assignee history
2014–2019Patents assigned to ALSTOM TECHNOLOGY LTD (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HONEYWELL INC | 9 | 1992–2001 |
| TEXAS A & M UNIV SYS | 8 | 1997–2003 |
| NXTPHASE T & D CORP | 4 | 2006–2010 |
| ALSTOM TECHNOLOGY LTD | 3 | 2014–2019 |
| BLAKE JAMES Nself | 3 | 2007–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Paradise Valley, AZ, US | 12 | 2003–2019 |
| Scottsdale, AZ, US | 11 | 1999–2002 |
| College Station, Texas, US | 7 | 1994–2000 |
| Phoenix, AZ, US | 5 | 1990–1994 |
| Mountain View, California, US | 1 | 1989 |