H04W 4/21

For social networking applications

Official title: for social networking applications

H04W4/21 (For social networking applications) appears on 3,921 US grants and 5,137 published applications in this corpus.

Search patents in H04W
Granted patents
3,921
Published applications
5,137
Assignees
1,275
Inventors
7,903
Latest grant
29 Sep 2026

Filings by year

H04W 4/21: granted patents and published applications per publication year
YearGranted patentsPublished applications
200206
200323
200409
2005214
2006512
2007023
2008541
2009866
2010976
201143144
201280277
2013144425
2014213585
2015315541
2016351505
2017419503
2018417385
2019479373
2020401327
2021311234
2022231192
2023191153
2024144112
202510790
20264441

By publication year. 2026 runs to 8 Oct.

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