G02B 6/2848
Having refractive means
Official title: {having refractive means, e.g. imaging elements between light guides as splitting, branching and/or combining devices, e.g. lenses, holograms}
G02B6/2848 (Having refractive means) appears on 261 US grants and 113 published applications in this corpus.
Search patents in G02B- Granted patents
- 261
- Published applications
- 113
- Assignees
- 169
- Inventors
- 468
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 8 | 0 |
| 1992 | 5 | 0 |
| 1993 | 8 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 13 | 0 |
| 1997 | 16 | 0 |
| 1998 | 17 | 0 |
| 1999 | 12 | 0 |
| 2000 | 12 | 0 |
| 2001 | 17 | 0 |
| 2002 | 3 | 3 |
| 2003 | 5 | 3 |
| 2004 | 4 | 10 |
| 2005 | 4 | 3 |
| 2006 | 5 | 2 |
| 2007 | 3 | 3 |
| 2008 | 4 | 1 |
| 2009 | 0 | 2 |
| 2010 | 2 | 3 |
| 2011 | 2 | 1 |
| 2012 | 2 | 5 |
| 2013 | 3 | 3 |
| 2014 | 0 | 1 |
| 2015 | 4 | 6 |
| 2016 | 4 | 7 |
| 2017 | 8 | 10 |
| 2018 | 6 | 7 |
| 2019 | 8 | 12 |
| 2020 | 8 | 11 |
| 2021 | 2 | 6 |
| 2022 | 6 | 4 |
| 2023 | 6 | 1 |
| 2024 | 6 | 6 |
| 2025 | 4 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fan-in/Fan-out device12 May 2026US 12,625,338 B2Kohoku Kogyo Co., Ltd.
- Methods for optimizing graded index fiber length to improve image quality17 Feb 2026US 12,552,703 B2Lumentum Operations LLC
- Optical filter device7 Oct 2025US 12,436,340 B2Kohoku Kogyo Co., Ltd.
- Systems and methods for processing optical signals15 Jul 2025US 12,360,313 B1Board of Trustees of the University of Alabama, for and on behalf of the University of Alabama in Huntsville
- Multi-plane conversion device28 Jan 2025US 12,210,148 B2CAILabs
- Mode division multiplexing using combined degenerate modes8 Jan 2026US 2026/0012282 A1Corning Incorporated
- Optical coupling module6 Nov 2025US 2025/0341681 A1Electronics and Telecommunications Research Institute
- Fan-in/fan-out device29 May 2025US 2025/0172755 A1Kohoku Kogyo Co., Ltd.
- Electronic device26 Dec 2024US 2024/0427076 A1Innolux Corporation
- Methods for optimizing graded index fiber length to improve image quality7 Nov 2024US 2024/0368021 A1Lumentum Operations LLC
Most cited
By later US patents
- Optical device and virtual image display device308US 7,418,170 B2Sony Corporation · 2008
- Planar holographic optical device for beam expansion and display228US 6,169,613 AYeda Research & Devel Co., Ltd. · 2001
- Waveguide hologram illuminators222US 5,515,184 AUniversity of Alabama in Huntsville · 1996
- Holographic optical devices for the transmission of optical signals of a plurality of channels222US 5,682,255 AYeda Research and Development Co. Ltd. · 1997
- Planar holographic optical device212US 5,966,223 AYeda Research and Development Co. Ltd. · 1999