4. Synthetic resins or natural rubbers -- part of the class 520 ser
  5. Synthetic resins
  6. From carboxylic acid or derivative thereof

Stephen Z. D. Cheng

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Cut resistant polymeric films

Apparel – Hand or arm coverings – Gloves
Patent

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Negative birefringent polyimide films

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent

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Negative birefringent polyimide films

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent

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Negative birefringent rigid rod polymer films

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent

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Poly(aryletherimides) for negative birefringent films for LCDs

Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – With viewing layer of specified composition
Reexamination Certificate

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Profile ID: LFUS-PAI-P-419447

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