G02B 6/266
The optical element being an attenuator
Official title: {the optical element being an attenuator}
G02B6/266 (The optical element being an attenuator) appears on 804 US grants and 631 published applications in this corpus.
Search patents in G02B- Granted patents
- 804
- Published applications
- 631
- Assignees
- 423
- Inventors
- 1,683
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 6 | 0 |
| 1986 | 4 | 0 |
| 1987 | 9 | 0 |
| 1988 | 9 | 0 |
| 1989 | 8 | 0 |
| 1990 | 9 | 0 |
| 1991 | 7 | 0 |
| 1992 | 8 | 0 |
| 1993 | 8 | 0 |
| 1994 | 12 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 12 | 0 |
| 1998 | 18 | 0 |
| 1999 | 18 | 0 |
| 2000 | 30 | 0 |
| 2001 | 44 | 12 |
| 2002 | 62 | 122 |
| 2003 | 79 | 116 |
| 2004 | 92 | 88 |
| 2005 | 69 | 69 |
| 2006 | 70 | 36 |
| 2007 | 44 | 26 |
| 2008 | 27 | 21 |
| 2009 | 25 | 14 |
| 2010 | 8 | 12 |
| 2011 | 6 | 8 |
| 2012 | 10 | 6 |
| 2013 | 10 | 11 |
| 2014 | 9 | 4 |
| 2015 | 7 | 8 |
| 2016 | 10 | 4 |
| 2017 | 5 | 7 |
| 2018 | 3 | 7 |
| 2019 | 8 | 12 |
| 2020 | 14 | 7 |
| 2021 | 6 | 7 |
| 2022 | 5 | 9 |
| 2023 | 6 | 7 |
| 2024 | 5 | 7 |
| 2025 | 5 | 7 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cable transportation installation with improved safety, method for detecting an event on a cable and method for manufacturing one such installation11 Aug 2026US 12,703,404 B2Poma
- Optical unit with attenuating portion and method of producing the same28 Apr 2026US 12,613,383 B2Nalux Co., Ltd.
- Optical part and semiconductor laser module21 Oct 2025US 12,449,613 B2Furukawa Electric Co., Ltd.
- Semiconductor structure and method for forming the same25 Feb 2025US 12,235,490 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Variable optical attenuator arrays11 Feb 2025US 12,222,551 B2Viavi Solutions Inc.
- Pluggable optical protection switch6 Aug 2026US 2026/0227586 A1II-VI Photonics, Inc.
- Optical switch with multimode phase shifter16 Jul 2026US 2026/0202618 A1Cisco Technology, Inc.
- Variable optical attenuator (voa) for high optical power handling11 Jun 2026US 2026/0161037 A1Molex Incorporated
- Variable optical attenuator array, and power adjustment device23 Apr 2026US 2026/0110843 A1Huawei Technologies Co., Ltd.
- Automatic fiber cable identification and calibration for well systems13 Nov 2025US 2025/0347216 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Adjustable optical attenuator1,027US 6,167,185 AJDS Fitel Inc. · 2000
- Photonic mems and structures872US 6,650,455 B2Iridigm Display Corporation · 2003
- Photonic MEMS and structures616US 7,123,216 B1Idc, LLC · 2006
- Universal optical fiber buildout system334US 5,274,729 AAT&T Bell Laboratories · 1993
- Optical simulator with loop-back attenuator having metalized optical fiber276US 5,076,688 AAMP Incorporated · 1991