4. Synthetic resins or natural rubbers -- part of the class 520 ser
  5. Synthetic resins
  6. At least one aryl ring which is part of a fused or bridged...

Feng Qin

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Degradable polymers

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent

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Oil absorption and reclamation methods

Cleaning and liquid contact with solids – Processes – Using solid work treating agents
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Oil absorption and reclamation methods therefrom

Cleaning and liquid contact with solids – Processes – Using solid work treating agents
Reexamination Certificate

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Profile ID: LFUS-PAI-P-469180

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