H04M 2203/351

Pre or post-call/conference information service

H04M2203/351 (Pre or post-call/conference information service) appears on 40 US grants and 24 published applications in this corpus.

Search patents in H04M
Granted patents
40
Published applications
24
Assignees
15
Inventors
55
Latest grant
30 Jun 2026

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H04M 2203/351: granted patents and published applications per publication year
YearGranted patentsPublished applications
201001
201100
201222
201310
201421
201500
201614
201734
201841
201981
202053
202132
202232
202350
202422
202501
202610

By publication year. 2026 runs to 8 Oct.

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