H04W 48/00
Access restriction
Official title: Access restriction (access security to prevent unauthorised access H04W12/08); Network selection; Access point selection
H04W48/00 (Access restriction) appears on 34,996 US grants and 44,960 published applications in this corpus.
Search patents in H04W- Granted patents
- 34,996
- Published applications
- 44,960
- Assignees
- 3,578
- Inventors
- 36,458
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 14 | 0 |
| 1994 | 23 | 0 |
| 1995 | 30 | 0 |
| 1996 | 46 | 0 |
| 1997 | 43 | 0 |
| 1998 | 88 | 0 |
| 1999 | 129 | 0 |
| 2000 | 138 | 0 |
| 2001 | 115 | 80 |
| 2002 | 141 | 282 |
| 2003 | 141 | 373 |
| 2004 | 168 | 569 |
| 2005 | 176 | 616 |
| 2006 | 321 | 748 |
| 2007 | 329 | 822 |
| 2008 | 346 | 943 |
| 2009 | 396 | 981 |
| 2010 | 516 | 1231 |
| 2011 | 732 | 1223 |
| 2012 | 1020 | 1440 |
| 2013 | 1331 | 1840 |
| 2014 | 1650 | 2041 |
| 2015 | 1874 | 2512 |
| 2016 | 2115 | 2665 |
| 2017 | 2329 | 2487 |
| 2018 | 2292 | 2644 |
| 2019 | 2524 | 2652 |
| 2020 | 2631 | 3094 |
| 2021 | 2447 | 2904 |
| 2022 | 2498 | 3043 |
| 2023 | 2357 | 3066 |
| 2024 | 2365 | 2780 |
| 2025 | 2247 | 2317 |
| 2026 | 1381 | 1607 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04W 48/08Access restriction or access information delivery14,234
- H04W 48/16Discovering, processing access restriction or access information12,823
- H04W 48/18Selecting a network or a communication service8,545
- H04W 48/20Selecting an access point5,428
- H04W 48/02Access restriction performed under specific conditions4,994
- H04W 48/17Selecting a data network poa [point of attachment]582
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Most cited
By later US patents
- Method and circuit for acquisition by a radio receiver683US 5,711,001 AMotorola, Inc. · 1998
- Routing method for Ad-Hoc mobile networks614US 5,987,011 AKing's College · 1999
- Highly dynamic destination-sequenced destination vector routing for mobile computers587US 5,412,654 AInternational Business Machines Corporation · 1995
- Locator device useful for house arrest and stalker detection582US 5,461,390 AAT&T IPM Corp. · 1995
- Verifiable service billing for intermediate networking devices555US 8,023,425 B2Headwater Partners I LLC · 2011