Inventor · Lompoc, CA, US

Bernd Keller

181Patents
35h-index
112Co-inventors
93Inventor score

Filing activity: Mar 12, 1992 → Aug 14, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US6791119B2 Light emitting diodes including modifications for light extraction Electricity 387 Expired
US7005679B2 Multiple component solid state white light Emerging Cross-Sectional Technologies 283 Expired
US7821023B2 Solid state lighting component Electricity 200 Active
USD615504S1 Emitter package General 119 Expired
US8044418B2 Leadframe-based packages for solid state light emitting devices Electricity 83 Active
US7655957B2 Submounts for semiconductor light emitting device packages and semiconductor light emitting device packages including the same Electricity 79 Active
US8563339B2 System for and method for closed loop electrophoretic deposition of phosphor materials on semiconductor devices Electricity 73 Active
US9024349B2 Wafer level phosphor coating method and devices fabricated utilizing method Electricity 65 Active
US8882284B2 LED lamp or bulb with remote phosphor and diffuser configuration with enhanced scattering properties Mechanical Engineering; Lighting; Heating 60 Active
US6261931A High quality, semi-insulating gallium nitride and method and system for forming same Electricity 59 Expired
US6972438B2 Light emitting diode with porous SiC substrate and method for fabricating Electricity 58 Expired
US9159888B2 Wafer level phosphor coating method and devices fabricated utilizing method Electricity 58 Active
US8970131B2 Solid state lighting apparatuses and related methods Mechanical Engineering; Lighting; Heating 58 Active
US7329905B2 Chip-scale methods for packaging light emitting devices and chip-scale packaged light emitting devices Electricity 57 Expired
US8632196B2 LED lamp incorporating remote phosphor and diffuser with heat dissipation features Electricity 55 Active
US8125137B2 Multi-chip light emitting device lamps for providing high-CRI warm white light and light fixtures including the same Emerging Cross-Sectional Technologies 54 Active
US9062830B2 High efficiency solid state lamp and bulb Electricity 53 Active
US9070850B2 Light emitting diode package and method for fabricating same Electricity 53 Active
USD594827S1 Lamp package General 50 Expired
USD582865S1 LED chip General 49 Expired
US9360188B2 Remote phosphor element filled with transparent material and method for forming multisection optical elements Electricity 48 Active
US7999283B2 Encapsulant with scatterer to tailor spatial emission pattern and color uniformity in light emitting diodes Emerging Cross-Sectional Technologies 47 Active
US7960819B2 Leadframe-based packages for solid state emitting devices Electricity 45 Active
US8562161B2 LED based pedestal-type lighting structure Electricity 44 Active
US7518158B2 Semiconductor light emitting devices and submounts Electricity 44 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.