H01P 1/20327
Electromagnetic interstage coupling
Official title: {Electromagnetic interstage coupling}
H01P1/20327 (Electromagnetic interstage coupling) appears on 1,084 US grants and 929 published applications in this corpus.
Search patents in H01P- Granted patents
- 1,084
- Published applications
- 929
- Assignees
- 393
- Inventors
- 1,736
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 10 | 0 |
| 1992 | 13 | 0 |
| 1993 | 7 | 0 |
| 1994 | 21 | 0 |
| 1995 | 14 | 0 |
| 1996 | 17 | 0 |
| 1997 | 15 | 0 |
| 1998 | 17 | 0 |
| 1999 | 21 | 0 |
| 2000 | 23 | 0 |
| 2001 | 33 | 13 |
| 2002 | 31 | 57 |
| 2003 | 42 | 48 |
| 2004 | 53 | 37 |
| 2005 | 31 | 43 |
| 2006 | 28 | 33 |
| 2007 | 29 | 45 |
| 2008 | 25 | 33 |
| 2009 | 34 | 32 |
| 2010 | 23 | 51 |
| 2011 | 39 | 49 |
| 2012 | 41 | 47 |
| 2013 | 27 | 40 |
| 2014 | 49 | 41 |
| 2015 | 50 | 30 |
| 2016 | 35 | 34 |
| 2017 | 41 | 44 |
| 2018 | 38 | 27 |
| 2019 | 34 | 36 |
| 2020 | 41 | 40 |
| 2021 | 27 | 26 |
| 2022 | 29 | 34 |
| 2023 | 22 | 36 |
| 2024 | 24 | 22 |
| 2025 | 43 | 19 |
| 2026 | 13 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Filter6 Oct 2026US 12,756,081 B2Soshin Electric Co., Ltd.
- Filter device22 Sep 2026US 12,744,294 B2Murata Manufacturing Co., Ltd.
- Tunable hybrid EBG-based electronic filter with discrete reactive elements30 Jun 2026US 12,671,158 B1Amazon Technologies, Inc.
- Thin film type resonator and design method thereof16 Jun 2026US 12,658,553 B2Korea Electronics Technology Institute
- Filter device2 Jun 2026US 12,647,088 B2Murata Manufacturing Co., Ltd.
- Printed filter17 Sep 2026US 2026/0280508 A1Wnc Corporation
- Circuits and methods for high frequency filters27 Aug 2026US 2026/0254083 A1Murata Manufacturing Co., Ltd.
- Systems and methods for coupling a superconducting transmission line to an array of resonators13 Aug 2026US 2026/0238177 A1D-Wave Systems Inc.
- Filter Device25 Jun 2026US 2026/0180553 A1Kmw Inc.
- Filter Structure25 Jun 2026US 2026/0180554 A1Kmw Inc.
Most cited
By later US patents
- Electromagnetic transmission line elements having a boundary between materials of high and low dielectric constants634US 5,889,449 ASpace Systems/Loral, Inc. · 1999
- System and method for dual-band antenna matching340US 7,180,467 B2Kyocera Wireless Corp. · 2007
- High quality-factor tunable resonator296US 6,452,465 B1M-Squared Filters, LLC · 2002
- Tunable horn antenna238US 6,867,744 B2Kyocera Wireless Corp. · 2005
- High frequency signal combining230US 8,140,113 B2Broadcom Corporation · 2012