4. Catalyst, solid sorbent, or support therefor: product or process
  5. Regenerating or rehabilitating catalyst or sorbent
  6. Treating with a liquid or treating in a liquid phase,...

MidAmerican Energy Holdings Company

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Method for cleaning fouled ion exchange resins

Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Treating with a liquid or treating in a liquid phase,...
Patent

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Process for producing electrolytic manganese dioxide from...

Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Preparing inorganic compound
Reexamination Certificate

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Recovery of zinc from geothermal brines

Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Reexamination Certificate

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