H01Q 3/247
By switching different parts of a primary active element
Official title: {by switching different parts of a primary active element}
H01Q3/247 (By switching different parts of a primary active element) appears on 384 US grants and 405 published applications in this corpus.
Search patents in H01Q- Granted patents
- 384
- Published applications
- 405
- Assignees
- 224
- Inventors
- 885
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 2 |
| 2003 | 1 | 2 |
| 2004 | 4 | 5 |
| 2005 | 9 | 12 |
| 2006 | 9 | 2 |
| 2007 | 4 | 6 |
| 2008 | 0 | 7 |
| 2009 | 5 | 2 |
| 2010 | 3 | 2 |
| 2011 | 3 | 4 |
| 2012 | 0 | 9 |
| 2013 | 1 | 13 |
| 2014 | 8 | 10 |
| 2015 | 11 | 18 |
| 2016 | 8 | 12 |
| 2017 | 22 | 17 |
| 2018 | 23 | 41 |
| 2019 | 45 | 50 |
| 2020 | 37 | 51 |
| 2021 | 46 | 41 |
| 2022 | 36 | 18 |
| 2023 | 20 | 24 |
| 2024 | 26 | 21 |
| 2025 | 24 | 19 |
| 2026 | 8 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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