Inventor

ROBERTS RALPH R

US24 patents

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

ROBERTS RALPH R

3M INNOVATIVE PROPERTIES CO

Sulfonamido ether substituted imidazoquinolines

Sulfonamido ether substituted imidazoquinolines

Buffer layers for organic electroluminescent devices and methods of manufacture and use

Sulfonamido ether substituted imidazoquinolines

Electroluminescent materials and methods of manufacture and use

Fluorescence based oxygen sensor systems

Halogenated acrylates and polymers derived therefrom

Donor sheet having a polymerizable, amorphous matrix with electrically active material disposed therein

Electroluminescent materials and methods of manufacture and use

Electroactive polymers

Electroactive polymers

Halogenated acrylates and polymers derived therefrom

Materials for organic electronic devices

Pre-polymer formulations for liquid crystal displays

Electron transport agents for organic electronic devices

Method of making chlorofluoroethers

Halogenated acrylates and polymers derived therefrom

Ethynyl containing electron transport dyes and compositions

Liquid crystal display comprising a void region and method of manufacturing same

ROBERTS RALPH R

Vandal alarm system for parking meters

Display system and method for projection onto non-planar surfaces

UNIV HOWARD

Isoxazolyl enaminones

3-carboalkoxy-2, 3-dihydro-1H-phenothiazin-4[10H]-one derivatives

WEBER BRIAN T

Electrochromic device