Inventor
Dennis W. Prather
Inventor
Newark, DE, US
Overview
Patents· 49 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus15%
B82YSpecific uses or applications of nanostructures13%
H01QAntennas, i.e. radio aerials13%
H04BTransmission12%
G01SRadio direction-finding4%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein4%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices4%
G06FElectric digital data processing4%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light4%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h103%
PatentTitleYear
11,069,974Optically fed antenna and optically fed antenna array202111,031,690Modular antenna systems and related methods of manufacture202111,012,159Phased-array radio frequency receiver202110,965,100Tunable optical pair source and related systems and methods202110,917,178Frequency agile microwave radiometer, hyperspectral microwave radiometer and methods of operation202110,908,499Two-dimensional conformal optically-fed phased array and methods of manufacturing the same202110,573,972Phased-array antenna with in-plane optical feed and method of manufacture202010,536,220Phased-array radio frequency receiver202010,490,893Optically fed antenna and optically fed antenna array201910,396,421Slot coupled directional coupler and directional filters in multilayer substrate201910,164,712Phased-array radio frequency receiver201810,158,179Phased-array antenna with in-plane optical feed and method of manufacture201810,055,959Systems and methods for intrusion detection using GHz beams20189,817,164'Method of fabricating an optical grating'20179,817,296'Optical router having optical routing nodes of four bi-directional optical switches'20179,800,346'Phased-array radio frequency receiver'20179,614,280'Optical feed network for phased array antennas'20179,544,510'Three-dimensional reconstruction of a millimeter-wave scene by optical up-conversion and cross-correlation detection'20179,525,489'Phased-array radio frequency receiver'20169,459,404'Optical router using interconnected photonic crystal elements with specific lattice-hole geometry'20169,297,702'Coherence switching'20169,287,990'Recycled carrier modulation in compound resonator configurations'20168,848,752'High spectral-purity carrier wave generation by nonlinear optical mixing'20148,338,268'Transfer method for thin film nanomembrane structures'20128,159,737'Controlling the phase of optical carriers'20127,965,435'Method for controlling the phase of optical carriers in millimeter wave imaging systems using optical upconversion'20117,892,710'Method for making three-dimensional structures on a substrate having micron dimensions, and an article of manufacture three-dimensional objects on a substrate with micron dimensions'20117,718,953'Electromagnetic/optical tweezers using a full 3D negative-refraction flat lens'20107,704,644'Zero-alignment method for tunable fabrication of three-dimensional photonic crystals by multiple-exposure laser interference using diffraction gratings patterned on a single mask'20107,700,936'Fabrication of quantum dots embedded in three-dimensional photonic crystal lattice'20107,428,348'Electro-optical switching using coupled photonic crystal waveguides'20087,428,358'Optical coupler for coupling an optical fiber into a waveguide'20087,384,724'Method for fabricating optical devices in photonic crystal structures'20087,382,032'Terahertz frequency band wavelength selector'20087,340,695'Reformulation of the finite-difference time-domain algorithm for hardware-based accelerators'20087,337,265'Organization of cache memory for hardware acceleration of the finite-difference time-domain method'20087,295,939'Hardware implementation of the pseudo-spectral time-domain method'20077,255,804'Process for making photonic crystal circuits using an electron beam and ultraviolet lithography combination'20077,194,497'Hardware-based accelerator for time-domain scientific computing'20077,170,096'Antimonide-based optical devices'20077,157,296'Etchless fabrication of planar photonic crystal structures in high refractive index material'20077,109,107'Method for creating flip-chip conductive-polymer bumps using photolithography and polishing'20067,057,250'Terahertz frequency band wavelength selector'20067,050,662'Fiber Bragg grating compression sensor system'20066,891,993'Multi-channel wavelength division multiplexing using photonic crystals'20056,832,033'Hetero-structure photonic bandgap materials'20046,782,169'System for efficient coupling to photonic crystal waveguides'20046,603,558'Micro-ring cavity gyroscope with magnetic field lock-in minimization'20036,061,135'Efficient spatial image separator'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000Based in Woodbine, MD, US· patent location history
2003–2011Patents assigned to UNIV DELAWARE (17)· patent assignee history
2003–2005Based in Landenburg, PA, US· patent location history
2004–2008Based in Landenberg, PA, US· patent location history
2006–2008Patents assigned to EM PHOTONICS INC (5)· patent assignee history
2006–2021Based in Newark, DE, US· patent location history
2011–2021Patents assigned to PHASE SENSITIVE INNOVATIONS INC (20)· patent assignee history
2012–2017Patents assigned to PRATHER DENNIS W (6)· patent assignee history
2012–2017Patents assigned to LUMILANT INC (4)· patent assignee history
2021Based in New Castle, DE, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PHASE SENSITIVE INNOVATIONS INC | 20 | 2011–2021 |
| UNIV DELAWARE | 17 | 2003–2011 |
| PRATHER DENNIS Wself | 6 | 2012–2017 |
| EM PHOTONICS INC | 5 | 2006–2008 |
| LUMILANT INC | 4 | 2012–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Newark, Delaware, US | 34 | 2006–2021 |
| Landenberg, Pennsylvania, US | 10 | 2004–2008 |
| Landenburg, Pennsylvania, US | 3 | 2003–2005 |
| New Castle, Delaware, US | 1 | 2021 |
| Woodbine, Maryland, US | 1 | 2000 |