G02B 6/3881
Using grooves to align ferrule ends
Official title: {using grooves to align ferrule ends}
G02B6/3881 (Using grooves to align ferrule ends) appears on 194 US grants and 206 published applications in this corpus.
Search patents in G02B- Granted patents
- 194
- Published applications
- 206
- Assignees
- 114
- Inventors
- 411
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 1 |
| 2004 | 3 | 1 |
| 2005 | 1 | 3 |
| 2006 | 3 | 1 |
| 2007 | 2 | 0 |
| 2008 | 0 | 1 |
| 2009 | 2 | 2 |
| 2010 | 2 | 2 |
| 2011 | 0 | 2 |
| 2012 | 2 | 3 |
| 2013 | 1 | 3 |
| 2014 | 4 | 9 |
| 2015 | 6 | 10 |
| 2016 | 10 | 11 |
| 2017 | 10 | 25 |
| 2018 | 16 | 15 |
| 2019 | 20 | 17 |
| 2020 | 12 | 16 |
| 2021 | 14 | 13 |
| 2022 | 8 | 5 |
| 2023 | 8 | 15 |
| 2024 | 9 | 15 |
| 2025 | 7 | 14 |
| 2026 | 6 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Molded optical connectors with zero-draft mechanical alignment features22 Sep 2026US 12,742,939 B23M Innovative Properties Company
- Fiber optic adapter assembly8 Sep 2026US 12,730,267 B2CommScope Connectivity Belgium BVBA
- Fiber optic adapter assembly10 Mar 2026US 12,571,968 B2CommScope Connectivity Belgium BVBA
- Method for orienting and terminating polarization-maintaining (PM) optical fiber and forming a PM optical fiber assembly10 Feb 2026US 12,546,948 B2OpTek Systems, Inc.
- Ferrule holder for miniature mt ferrule and adapter interface for mating with fiber optic connectors3 Feb 2026US 12,541,063 B2US Conec Ltd.
- Very small form factor shuttered fiber-optic adapter1 Oct 2026US 2026/0299214 A1US Conec Ltd.
- Expanded Beam Optical Fiber Connector with Detachment Mechanism10 Sep 2026US 2026/0267080 A1Ayar Labs, Inc.
- Cable enclosure structurally configured to connect different fiber optic connector types with an adapter while minimizing cable bends so as to mitigate signal loss27 Aug 2026US 2026/0251876 A1Ppc Broadband, Inc.
- Hardened connector23 Jul 2026US 2026/0211191 A1CommScope Technologies LLC
- Optical connector2 Jul 2026US 2026/0186211 A1Fujikura Ltd.
Most cited
By later US patents
- Connector and receptacle containing a physical security feature132US 7,207,724 B2Tyco Electronics Corporation · 2007
- Fiber optic connector124US 4,515,434 AAllied Corporation · 1985
- Multi-fiber optic cable connector and cable apparatus92US 4,854,664 ARockwell International Corporation · 1989
- Optical fiber ribbon cartridge connector79US 4,142,776 ABell Telephone Laboratories, Incorporated · 1979
- Connector and receptacle containing a physical security feature66US 6,960,025 B2Tyco Electronics Corporation · 2005