4. Solid anti-friction devices, materials therefor, lubricant or se
  5. Lubricants or separants for moving solid surfaces and...
  6. Organic sulfur compound, wherein the sulfur is single bonded...

Karl Heinz Heier

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Compositions containing copolymers based on acryloyldimethyl...

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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Copolymers and their use as drilling aids

Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Reexamination Certificate

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Method for reducing or completely eliminating water influx...

Wells – Processes – Cyclic injection then production of a single well
Reexamination Certificate

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Use of polymers as antimisting additives in water-based...

Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Compound of indeterminate structure – prepared by reacting a...
Reexamination Certificate

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Use of polymers as antimisting additives in water-based...

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-2154617

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