4. Chemistry of inorganic compounds
  5. Carbon or compound thereof
  6. Elemental carbon

Burkhard Freund

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Carbon black

Chemistry of inorganic compounds – With additive – Additive contains metal – boron – or silicon
Reexamination Certificate

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Carbon black and processes for manufacturing

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...
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Carbon black, process for its production and its use

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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Carbon blacks and process for producing them

Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon
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Inversion carbon blacks and method for their manufacture

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-1270147

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