O,O'-bridged oligophenylene laser dyes and dyestuff lasers and m

o,o'-Bridged oligophenylene laser dyes, dyestuff lasers and meth

Optical brighteners

Optical brighteners

Optical brighteners compositions their production and their use

Optical brighteners their composition their production and...

Optical brightening agent

Optically brightened plastics for optically brightening...

Organic electroluminescence device

Organic electroluminescence device and compound having an alumin

Organic electroluminescence element

Organic electroluminescence element

Organic electroluminescent device

Organic fluorescent whitening pigment composition having an...

Organic light emitting displays and new fluorescent compounds

Organic memory device using iridium organometallic compound...

Organic semiconductor solutions

Organic-electroluminescence device, process for its...

Organometallic complexes as phosphorescent emitters in...

Oxygen sensing membranes and methods of making same