4. Rotary kinetic fluid motors or pumps
  5. Working fluid passage or distributing means associated with...
  6. Plural rigidly related blade sets

Tsung-Yu Lei

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Axial flow fan

Fluid reaction surfaces (i.e. – impellers) – Lashing between working members or external bracing – Peripheral
Reexamination Certificate

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Centrifugal fan and fan frame thereof

Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Casing having tangential inlet or outlet
Reexamination Certificate

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Composite heat-dissipating device

Rotary expansible chamber devices – Interengaging rotating members – Intermittent rotation
Reexamination Certificate

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Cooling fan

Rotary kinetic fluid motors or pumps – Selectively adjustable vane or working fluid control means – Upstream of runner
Reexamination Certificate

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Fan

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment
Design Patent

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Profile ID: LFUS-PAI-P-2299725

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