4. Synthetic resins or natural rubbers -- part of the class 520 ser
  5. Synthetic resins
  6. Polymers from only ethylenic monomers or processes of...

Takenori Izumizawa

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Amine derivative and organic electroluminescent device using...

Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate

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Copolymer, a process for producing the same and an electrolumine

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent

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Diaminonaphthalene derivative and organic electroluminescent...

Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate

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Organic el device

Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate

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Organic electroluminescent device

Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1292727

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