Inventor

WORTMAN DAVID L

US24 patents

⚠️ This page may combine multiple inventors who share the name “WORTMAN DAVID L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WORTMAN DAVID L

3M INNOVATIVE PROPERTIES CO

Brightness enhancing reflective polarizer

Optical devices using reflecting polarizing materials

Transflective displays with reflective polarizing transflector

High efficiency optical devices

Transflective displays with reflective polarizing transflector

High efficiency optical devices

Backlight system with multilayer optical film reflector

Display with reflective polarizer and randomizing cavity

Lightguide having a directly secured reflector and method of making the same

Reflective polarizer having improved properties and optical display with improved reflective polarizer

High efficiency optical devices

Optical devices using reflecting polarizing materials

Transflective displays with reflective polarizing transflector

High efficiency optical devices

High efficiency optical devices

Display having a reflective polarizer

MINNESOTA MINING & MFG

Diffusely reflecting multilayer polarizers and mirrors

Light directing film having variable height structured surface and light directing article constructed therefrom

Reflective polarizer display

Displacing an optical lighting film&#39;s linear array of grooves to facilitate emission of light

Light fixture for externally illuminated sign

Optical traffic preemption detector

3MINNOVATIVE PROPERTIES COMPAN

High efficiency optical devices

3M INTELLECTUAL PROPERTIES COM

Diffuse reflectors

Displacing an optical lighting film's linear array of grooves to facilitate emission of light