G02B 6/3838
Using grooves for light guides
Official title: {using grooves for light guides}
G02B6/3838 (Using grooves for light guides) appears on 772 US grants and 532 published applications in this corpus.
Search patents in G02B- Granted patents
- 772
- Published applications
- 532
- Assignees
- 294
- Inventors
- 1,347
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 7 | 0 |
| 1979 | 7 | 0 |
| 1980 | 14 | 0 |
| 1981 | 11 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 11 | 0 |
| 1988 | 20 | 0 |
| 1989 | 12 | 0 |
| 1990 | 13 | 0 |
| 1991 | 13 | 0 |
| 1992 | 23 | 0 |
| 1993 | 16 | 0 |
| 1994 | 21 | 0 |
| 1995 | 15 | 0 |
| 1996 | 16 | 0 |
| 1997 | 26 | 0 |
| 1998 | 25 | 0 |
| 1999 | 16 | 0 |
| 2000 | 24 | 0 |
| 2001 | 33 | 11 |
| 2002 | 32 | 45 |
| 2003 | 21 | 45 |
| 2004 | 34 | 21 |
| 2005 | 15 | 15 |
| 2006 | 10 | 10 |
| 2007 | 14 | 9 |
| 2008 | 9 | 3 |
| 2009 | 6 | 2 |
| 2010 | 3 | 6 |
| 2011 | 0 | 4 |
| 2012 | 3 | 10 |
| 2013 | 9 | 17 |
| 2014 | 8 | 19 |
| 2015 | 17 | 22 |
| 2016 | 28 | 31 |
| 2017 | 25 | 24 |
| 2018 | 14 | 32 |
| 2019 | 22 | 23 |
| 2020 | 25 | 34 |
| 2021 | 33 | 37 |
| 2022 | 25 | 22 |
| 2023 | 16 | 25 |
| 2024 | 25 | 25 |
| 2025 | 16 | 23 |
| 2026 | 14 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods of optical fiber reshaping for direct locking optical fibers and correcting core-to-ferrule eccentricity errors1 Sep 2026US 12,724,207 B2Corning Research & Development Corporation
- Ferrule for optical connector, optical connector, and method for manufacturing optical connector18 Aug 2026US 12,710,600 B2Fujikura Ltd.
- Optical fiber support structure28 Jul 2026US 12,693,476 B2US Conec Ltd.
- Optical cable assembly with mismatched fiber length14 Jul 2026US 12,681,241 B23M Innovative Properties Company
- Optical connector ferrule, optical connector, and production method for optical connector30 Jun 2026US 12,669,657 B2Nippon Tsushin Denzai Co., Ltd.
- Optical interconnect with tandem ferrule8 Oct 2026US 2026/0309929 A13M Innovative Properties Company
- Method For Orienting And Terminating Polarization-Maintaining (PM) Optical Fiber And Forming A PM Optical Fiber Assembly1 Oct 2026US 2026/0299213 A1OpTek Systems, Inc.
- Optical fiber ferrule type connectors and fabrication method17 Sep 2026US 2026/0276902 A1Samba Photonics Lab Inc.
- Lens-based connector assemblies having precision alignment features and methods for fabricating the same10 Sep 2026US 2026/0267079 A1Corning Research & Development Corporation
- Fiber optic connector assembly and fabrication method incorporating multi-fiber ferrule and thermoplastic adhesive3 Sep 2026US 2026/0259380 A1Corning Research & Development Corporation
Most cited
By later US patents
- Fiber optic connector receptacle assembly385US 6,079,881 AMolex Incorporated · 2000
- Optical connector and housing for optical connector191US 6,179,482 B2Fujikura Ltd. · 2001
- Quick connect fiber optic connector having a deformable barrel178US 6,234,685 B1Lucent Technologies Inc. · 2001
- Fiber optic connector element and method for its use158US 4,964,688 ANorthern Telecom Limited · 1990
- Optical fiber interconnection apparatus and method152US 5,155,785 AAT&T Bell Laboratories · 1992