Patent assignee · CN · COMPANY

APPOTRONICS CORPORATION LIMITED

201Patents
200Active
201Granted
60Portfolio score

Filing activity: Apr 7, 2010 → Nov 10, 2022 · 3 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
USD854071S1 Projector General 13 Active
US9075299B2 Light source with wavelength conversion device and filter plate Electricity 8 Active
US9075293B2 Illumination device, projecting device and lighting device Mechanical Engineering; Lighting; Heating 5 Active
US10288872B2 Wavelength conversion device, and light source system and projection system therefor Electricity 4 Active
US8840267B2 High luminance multicolor illumination devices and related methods and projection system using the same Physics 4 Active
US9091409B2 High recycling efficiency solid state light source device Mechanical Engineering; Lighting; Heating 3 Active
US8646947B2 Multicolor illumination device using multiple light sources and a moving plate with wavelength conversion materials Electricity 3 Active
US10203591B2 Wavelength conversion device, light-emitting device and projection system Electricity 3 Active
US9866807B2 Light source system and image projection system Mechanical Engineering; Lighting; Heating 3 Active
US9897899B2 Light-emitting device and projection system Physics 2 Active
US8740406B2 Method and apparatus for solid state illumination Physics 2 Active
US11398180B2 Display control system and display device Physics 2 Active
US10989998B2 Light source device and projection apparatus having light-combination device located at focus position of lenses Physics 2 Active
US9222643B2 LED illuminating device for stage lighting and method for improving color uniformity of the device Mechanical Engineering; Lighting; Heating 2 Active
US10365552B2 Light source employing a wavelength conversion device with a light introducing device and a light collecting device Electricity 2 Active
US9891439B2 Light source, light combining device, and projection device with the light source Physics 2 Active
US11194243B2 Projection screen and projection system Physics 2 Active
US9467667B2 Method and apparatus of white balance adjustment Electricity 2 Active
US9904160B2 Light-emitting device and related light source system Physics 2 Active
US8474997B2 High brightness illumination device using double-sided excitation of wavelength conversion materials Mechanical Engineering; Lighting; Heating 2 Active
US10656513B2 Light-reflecting microstructure, projection screen and projection system Physics 2 Active
US11378876B2 Light source device and display apparatus Electricity 2 Active
US10386705B2 Light emitting device and projection display apparatus Physics 2 Active
US10139713B2 Light source system and projection system Electricity 2 Active
US10416440B2 Projection system, light source system and light source assembly Physics 2 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.