Inventor
Patrick Dumais
Inventor
Ottawa, CA
Overview
Patents· 22 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus45%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein21%
G01SRadio direction-finding8%
H04LTransmission of digital information, e.g. telegraphic communication5%
H04QSelecting5%
B82YSpecific uses or applications of nanostructures3%
G01NInvestigating or analysing materials by determining their chemical or physical properties3%
H01LSemiconductor devices3%
H04BTransmission3%
H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation3%
PatentTitleYear
10,965,370Optical performance monitor202110,921,453Liquid crystal on silicon (LCOS) lidar scanner with multiple light sources202110,901,089Coherent LIDAR method and apparatus202110,866,359Apparatus and methods for accommodating manufacturing variance in optical photonic integrated circuits202010,677,987Polarization independent photonic device having multimode component202010,620,371Waveguide crossing having rib waveguides202010,613,276Optical scanner with optically switched paths to multiple surface or edge couplers202010,527,792Spiral optical waveguide termination202010,359,569Optical waveguide termination having a doped, light-absorbing slab201910,126,572Automatic endless polarization controller for a silicon-on-insulator platform20189,946,023Optical attenuator and fabrication method thereof20189,927,575'Optical coupling using polarization beam displacer'20189,746,617'Optical switches with surface grating couplers and edge couplers'20179,709,738'Waveguide crossing'20179,684,131'Apparatus and method for an optical switch having a 2×1 multi-mode interferometer and photodetector'20179,638,981'Optical switch with improved switching efficiency'20179,491,120'Method for crosstalk and power optimization in silicon photonic based switch matrices'20169,456,260'Method for crosstalk and power optimization in silicon photonic based switch matrices'20169,400,354'Waveguide polarization rotator and method of construction thereof'20167,471,866'Waveguiding structures with embedded microchannels and method for fabrication thereof'20085,710,848'Optimized non-linear effect tapered optical fiber and method of making same'19985,479,546'Optimized non-linear effect tapered optical fiber interferometer/switch device'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–1998Based in Outremont, CA· patent location history
2008–2021Based in Ottawa, CA· patent location history
2016–2021Patents assigned to HUAWEI TECH CO LTD (17)· patent assignee history
2017–2021Patents assigned to DUMAIS PATRICK (9)· patent assignee history
2018–2021Patents assigned to GOODWILL DOMINIC JOHN (4)· patent assignee history
2020–2021Patents assigned to MANSOURI RAD MOHAMMAD MEHDI (3)· patent assignee history
2020–2021Patents assigned to BERNIER ERIC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HUAWEI TECH CO LTD | 17 | 2016–2021 |
| DUMAIS PATRICKself | 9 | 2017–2021 |
| GOODWILL DOMINIC JOHN | 4 | 2018–2021 |
| MANSOURI RAD MOHAMMAD MEHDI | 3 | 2020–2021 |
| BERNIER ERIC | 2 | 2020–2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ottawa, CA | 20 | 2008–2021 |
| Outremont, CA | 2 | 1995–1998 |