4. Compositions: coating or plastic
  5. Materials or ingredients
  6. Miscellaneous

Heinz Esch

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Hydrophobic precipitated silicic acid and compositions containin

Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent

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Precipitated silica

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer – spacer or materials for use therewith
Patent

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Precipitated silica paste

Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent

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Precipitated silicas

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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Precipitated silicas

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...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-298566

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