Inventor · Maxhütte-Haidhof, DE

Alfred Lell

97Patents
8h-index
79Co-inventors
81Inventor score

Filing activity: Sep 30, 1997 → May 24, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US6849881B1 Optical semiconductor device comprising a multiple quantum well structure Electricity 101 Expired
US7106090B2 Optical semiconductor device with multiple quantum well structure Electricity 55 Expired
US7893424B2 Semiconductor layer structure with superlattice Electricity 26 Active
US6472718B2 Semiconductor device Electricity 25 Expired
US9130353B2 Laser diode assembly and method for producing a laser diode assembly Electricity 14 Active
US6844565B2 Semiconductor component for the emission of electromagnetic radiation and method for production thereof Electricity 13 Expired
US7005681B2 Radiation-emitting semiconductor component and method for making same Electricity 13 Expired
US8369370B2 Laser light source and method for producing a laser light source Electricity 12 Active
US7556974B2 Optical semiconductor device with multiple quantum well structure Electricity 7 Active
US8475025B2 Light-emitting device Physics 5 Active
US9508903B2 Optoelectronic component and method for producing an optoelectronic component Electricity 5 Active
US8858030B2 Laser light source Electricity 5 Active
US8073300B2 Arrangement comprising a fiber-optic waveguide Mechanical Engineering; Lighting; Heating 4 Active
US7822089B2 Semiconductor layer structure with superlattice Electricity 4 Active
US6339233B1 Metal clad ridge waveguide (“MCRW”) laser semiconductor structure with doped semiconductor substrate Electricity 4 Expired
US9531161B2 Light-emitting assembly having a semiconductor layer sequence having an active zone on a columnar structure Electricity 3 Active
US9407063B2 Laser light source and method for producing a laser light source Electricity 3 Active
US11011887B2 Semiconductor laser diode Electricity 3 Active
US10811843B2 Semiconductor laser Electricity 3 Active
US6703644B1 Method for producing a semiconductor configuration Electricity 3 Expired
US9054487B2 Semiconductor stripe laser Electricity 3 Active
US9048631B2 Laser light source Electricity 3 Active
US8256947B2 Light-emitting device Physics 3 Active
US7008810B2 Method for fabricating at least one mesa or ridge structure or at least one electrically pumped region in a layer or layer sequence Emerging Cross-Sectional Technologies 3 Expired
US6465270B2 Process for producing a semiconductor device Electricity 2 Expired

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