H04M 2203/354

Reverse directory service

H04M2203/354 (Reverse directory service) appears on 43 US grants and 49 published applications in this corpus.

Search patents in H04M
Granted patents
43
Published applications
49
Assignees
33
Inventors
77
Latest grant
24 Jun 2025

Filings by year

H04M 2203/354: granted patents and published applications per publication year
YearGranted patentsPublished applications
199810
199910
200000
200100
200200
200310
200401
200500
200611
200701
200812
200915
201024
201123
201211
201364
201401
201525
201612
201754
201834
201941
202046
202120
202232
202310
202401
202510
202601

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

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