4. Synthetic resins or natural rubbers -- part of the class 520 ser
  5. Synthetic resins
  6. Processes of preparing a desired or intentional composition...

Robert Edward Detlefsen

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Benzotriazole UV absorbers having enhanced durability

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent

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Ultraviolet light absorbers

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate

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Ultraviolet light absorbers

Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1863434

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