H04M 2203/401

Performance feedback

H04M2203/401 (Performance feedback) appears on 382 US grants and 350 published applications in this corpus.

Search patents in H04M
Granted patents
382
Published applications
350
Assignees
132
Inventors
712
Latest grant
28 Jul 2026

Filings by year

H04M 2203/401: granted patents and published applications per publication year
YearGranted patentsPublished applications
200512
200603
200710
200802
200912
201024
201132
201255
201397
20141531
20152121
20162722
20172827
20182825
20193121
20204528
20214938
20223032
20233629
20242619
20251718
2026712

By publication year. 2026 runs to 8 Oct.

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