H01Q 21/29

Combinations of different interacting antenna units for giving a desired directional characteristic

Official title: Combinations of different interacting antenna units for giving a desired directional characteristic (H01Q25/00 takes precedence)

H01Q21/29 (Combinations of different interacting antenna units for giving a desired directional characteristic) appears on 1,303 US grants and 1,200 published applications in this corpus.

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1,303
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662
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2,555
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6 Oct 2026

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H01Q 21/29: granted patents and published applications per publication year
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1998210
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20032828
20042644
20053746
20064236
20072843
20083150
20093241
20103446
20114134
20123535
20134547
20143941
20153868
20164658
20175457
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20196799
20208479
20218054
20225948
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20253329
20262831

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