G02B 6/2826
Using mechanical machining means for shaping of the couplers
Official title: {using mechanical machining means for shaping of the couplers, e.g. grinding or polishing (grinding, polishing in general B24)}
G02B6/2826 (Using mechanical machining means for shaping of the couplers) appears on 202 US grants and 73 published applications in this corpus.
Search patents in G02B- Granted patents
- 202
- Published applications
- 73
- Assignees
- 106
- Inventors
- 351
- Latest grant
- 4 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 12 | 0 |
| 1985 | 11 | 0 |
| 1986 | 5 | 0 |
| 1987 | 11 | 0 |
| 1988 | 13 | 0 |
| 1989 | 7 | 0 |
| 1990 | 2 | 0 |
| 1991 | 11 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 10 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 1 |
| 2002 | 7 | 13 |
| 2003 | 16 | 6 |
| 2004 | 8 | 12 |
| 2005 | 6 | 1 |
| 2006 | 6 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 2 |
| 2014 | 2 | 0 |
| 2015 | 3 | 3 |
| 2016 | 3 | 1 |
| 2017 | 2 | 5 |
| 2018 | 3 | 4 |
| 2019 | 2 | 2 |
| 2020 | 3 | 4 |
| 2021 | 5 | 4 |
| 2022 | 1 | 2 |
| 2023 | 2 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Optical multiplexing/demultiplexing method, optical multiplexing/demultiplexing circuit, and manufacturing method thereof4 Mar 2025US 12,242,111 B2Nippon Telegraph and Telephone Corporation
- Fiber optic terminals and fiber optic networks having variable ratio couplers30 Jan 2024US 11,886,010 B2Corning Research & Development Corporation
- Manufacturing method and manufacturing apparatus of optical splitters5 Sep 2023US 11,747,564 B2Nippon Telegraph and Telephone Corporation
- Shaped fibers for efficient beam combination4 Apr 2023US 11,619,788 B2Lumentum Operations LLC
- Beam combiner for high-power signal, and manufacturing method for same28 Jun 2022US 11,372,162 B2Gz Photonics Co., Ltd.
- Tunable-gap integrated photonic circuits3 Apr 2025US 2025/0110279 A1The MITRE Corporation
- Method for machining an optical fibre, optical fibre, coupling assembly and manufacturing assembly11 Apr 2024US 2024/0118494 A1Laser Zentrum Hannover E. V.
- Optical multiplexing/demultiplexing method, optical multiplexing/demultiplexing circuit, and manufacturing method thereof30 Mar 2023US 2023/0100044 A1Nippon Telegraph and Telephone Corporation
- Manufacturing method and manufacturing apparatus of optical splitters27 Oct 2022US 2022/0342153 A1Nippon Telegraph and Telephone Corporation
- Shaped fibers for efficient beam combination20 Oct 2022US 2022/0334327 A1Lumentum Operations LLC
Most cited
By later US patents
- Switchable optical components377US 6,567,573 B1DigiLens Inc. · 2003
- Optical modulation apparatus and measurement method198US 5,091,983 A1992
- Optical fiber coupler with tunable coupling ratio and method of making171US 4,763,977 ACanadian Patents and Development Limited-Societe · 1988
- Variable coupler fiberoptic sensor143US 4,634,858 ASperry Corporation · 1987
- Coupled communications fibers131US 4,315,666 A1982