H04L 51/234

For tracking messages

Official title: for tracking messages

H04L51/234 (For tracking messages) appears on 1,551 US grants and 1,798 published applications in this corpus.

Search patents in H04L
Granted patents
1,551
Published applications
1,798
Assignees
594
Inventors
3,031
Latest grant
22 Sep 2026

Filings by year

H04L 51/234: granted patents and published applications per publication year
YearGranted patentsPublished applications
199110
199210
199320
199410
199510
199630
199720
199870
199990
2000130
200173
2002923
2003726
2004842
2005529
20062253
20071661
20082167
20093775
20105767
20114565
20126563
20135769
20146792
201570114
2016107127
201710598
20189489
2019120155
2020137102
202110583
20229380
20239591
20248859
20255745
20261720

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

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