H04L 61/4594

Address books, i.e. directories containing contact information about correspondents

Official title: Address books, i.e. directories containing contact information about correspondents (telephone directories in user terminals H04M1/27453)

H04L61/4594 (Address books, i.e. directories containing contact information about correspondents) appears on 537 US grants and 629 published applications in this corpus.

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Granted patents
537
Published applications
629
Assignees
219
Inventors
904
Latest grant
20 Jan 2026

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H04L 61/4594: granted patents and published applications per publication year
YearGranted patentsPublished applications
199830
199900
200000
200100
200202
200301
200402
200514
200616
2007015
2008111
2009124
2010417
2011726
20121725
20132731
20142239
20154155
20165658
20174870
20184345
20197488
20206334
20213824
20223313
20231819
20242310
2025148
202622

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