H04B 10/6972
Using passive filtering
Official title: {using passive filtering}
H04B10/6972 (Using passive filtering) appears on 61 US grants and 56 published applications in this corpus.
Search patents in H04B- Granted patents
- 61
- Published applications
- 56
- Assignees
- 48
- Inventors
- 134
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 3 |
| 2004 | 1 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 0 |
| 2007 | 2 | 0 |
| 2008 | 0 | 0 |
| 2009 | 2 | 5 |
| 2010 | 1 | 0 |
| 2011 | 2 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 2 | 5 |
| 2015 | 2 | 0 |
| 2016 | 3 | 3 |
| 2017 | 3 | 2 |
| 2018 | 4 | 5 |
| 2019 | 3 | 7 |
| 2020 | 8 | 3 |
| 2021 | 2 | 4 |
| 2022 | 5 | 2 |
| 2023 | 1 | 3 |
| 2024 | 2 | 5 |
| 2025 | 3 | 4 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Receiver optical sub-assembly, bi-directional optical sub-assembly, optical module, and optical network device11 Nov 2025US 12,470,303 B2Huawei Technologies Co., Ltd.
- Light receiving device and communication device28 Jan 2025US 12,212,370 B2NEC Corporation
- Module with high peak bandwidth i/o channels5 Mar 2026US 2026/0066997 A1
- Optical transmitter, optical receiver, optical transmitting node, and optical interconnection system27 Nov 2025US 2025/0365076 A1Omattrix Ltd., Co.
- Detection and/or communication system for a motor vehicle comprising a module for receiving a light beam18 Sep 2025US 2025/0293776 A1Valeo Vision
- Optical transceiver equipped with filtering capacitors having noise absorber1 May 2025US 2025/0141554 A1Prime World International Holdings Ltd.
- Audio signal transmission device and method, audio signal reception device and method, and audio system13 Feb 2025US 2025/0055574 A1Acon Optics Communications Inc.
Most cited
By later US patents
- Optical communication system using pulse position modulation53US 4,584,720 ABritish Telecommunications plc · 1986
- Receiver for unipolar Manchester fiber optics signals32US 4,257,125 AThe Singer Company · 1981
- Push-pull optical receiver having gain control27US 5,477,370 AScientific-Atlanta, Inc. · 1995
- LAN electro-optical interface24US 5,251,054 AGeneral Motors Corporation · 1993
- Method and system for a narrowband, non-linear optoelectronic receiver20US 8,787,774 B2Luxtera, Inc. · 2014