4. Heat exchange
  5. Flow passages for two confined fluids
  6. Interdigitated plural first and plural second fluid passages

William J. Zak, Jr. Esq.

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Electric power conversion systems – Current conversion – Using semiconductor-type converter
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Axial fan skip-stall

Rotary kinetic fluid motors or pumps – With means for re-entry of working fluid to blade set – Re-entry working fluid joins inlet working fluid upstream of...
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Biological wastewater treatment system

Liquid purification or separation – Processes – Treatment by living organism
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Catalytic converter with metal monolith having an integral...

Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Molecular oxygen or ozone component
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Catalytic partial oxidation of hydrocarbon fuels to hydrogen...

Compositions – Gaseous compositions
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