H04L 25/40

Transmitting circuits

Official title: Transmitting circuits; Receiving circuits {(repeater circuits, relay circuits H04L25/20)}

H04L25/40 (Transmitting circuits) appears on 5,081 US grants and 3,777 published applications in this corpus.

Search patents in H04L
Granted patents
5,081
Published applications
3,777
Assignees
1,426
Inventors
7,532
Latest grant
6 Oct 2026

Filings by year

H04L 25/40: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976260
1977340
1978430
1979100
1980310
1981270
1982290
1983280
1984280
1985490
1986370
1987390
1988390
1989470
1990240
1991330
1992430
1993680
1994460
1995600
1996600
1997740
1998950
1999930
2000900
200111535
2002119115
2003113155
2004113183
2005120186
2006157140
2007162126
2008138171
2009122179
2010164160
2011129105
2012167101
2013156132
2014163139
2015203185
2016205181
2017201156
2018160145
2019199210
2020191142
2021173153
2022151156
2023147156
2024137141
2025140129
20268396

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

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