G02B 6/4209
Optical features
Official title: {Optical features}
G02B6/4209 (Optical features) appears on 90 US grants and 74 published applications in this corpus.
Search patents in G02B- Granted patents
- 90
- Published applications
- 74
- Assignees
- 66
- Inventors
- 210
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 11 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 3 |
| 2003 | 0 | 2 |
| 2004 | 1 | 2 |
| 2005 | 4 | 7 |
| 2006 | 4 | 3 |
| 2007 | 1 | 0 |
| 2008 | 2 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 6 |
| 2017 | 6 | 5 |
| 2018 | 6 | 7 |
| 2019 | 2 | 10 |
| 2020 | 4 | 5 |
| 2021 | 8 | 5 |
| 2022 | 6 | 4 |
| 2023 | 2 | 4 |
| 2024 | 4 | 3 |
| 2025 | 1 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Focal polarization beam displacer30 Jun 2026US 12,669,637 B2Cisco Technology, Inc.
- Photonics integrated circuit optical amplifier10 Mar 2026US 12,571,970 B2II-VI Photonics, Inc.
- Waveguide with anti-reflection properties15 Apr 2025US 12,276,792 B2Google Inc.
- Managing photonic integrated circuit optical coupling3 Sep 2024US 12,078,674 B2Ciena Corporation
- Optical module for bi-directional monochromatic transmission2 Jul 2024US 12,025,837 B2Browave Corporation
- Semiconductor device27 Aug 2026US 2026/0251863 A1Panelsemi Corporation
- Device and method for coupling a laser beam into a double-clad fiber5 Jun 2025US 2025/0178124 A1
- Device for coupling a laser beam into a multi-clad fibre and optical system5 Jun 2025US 2025/0180812 A1
- Photonics Integrated Circuit Optical Amplifier25 Jul 2024US 2024/0248265 A1II-VI Photonics, Inc.
- Managing photonic integrated circuit optical coupling7 Mar 2024US 2024/0077532 A1Ciena Corporation
Most cited
By later US patents
- Polarization independent optical isolator93US 5,033,830 AAT&T Bell Laboratories · 1991
- Optical device88US 4,548,478 AFujitsu Limited · 1985
- Optical nonreciprocal device65US 4,239,329 ANippon Telegraph & Telephone Public Corporation · 1980
- Fiber optic isolater and amplifier62US 5,191,467 AKaptron, Inc. · 1993
- Semiconductor laser module and positioning method thereof52US 5,074,682 AFujitsu Limited · 1991