G02B 6/4224
Using visual alignment markings
Official title: {using visual alignment markings, e.g. index methods}
G02B6/4224 (Using visual alignment markings) appears on 451 US grants and 350 published applications in this corpus.
Search patents in G02B- Granted patents
- 451
- Published applications
- 350
- Assignees
- 205
- Inventors
- 950
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 13 | 0 |
| 1998 | 16 | 0 |
| 1999 | 26 | 0 |
| 2000 | 17 | 0 |
| 2001 | 28 | 8 |
| 2002 | 26 | 39 |
| 2003 | 34 | 52 |
| 2004 | 28 | 18 |
| 2005 | 20 | 12 |
| 2006 | 18 | 9 |
| 2007 | 11 | 8 |
| 2008 | 9 | 8 |
| 2009 | 8 | 6 |
| 2010 | 6 | 10 |
| 2011 | 5 | 4 |
| 2012 | 8 | 5 |
| 2013 | 4 | 10 |
| 2014 | 7 | 12 |
| 2015 | 11 | 11 |
| 2016 | 14 | 11 |
| 2017 | 18 | 14 |
| 2018 | 12 | 12 |
| 2019 | 18 | 11 |
| 2020 | 12 | 15 |
| 2021 | 13 | 16 |
| 2022 | 13 | 9 |
| 2023 | 12 | 19 |
| 2024 | 4 | 12 |
| 2025 | 8 | 13 |
| 2026 | 6 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical transmission device and coupling method thereof19 May 2026US 12,631,834 B2QuantumZ Inc.
- Performance heterogeneous lasers and active components5 May 2026US 12,620,773 B2Nexus Photonics LLC
- Systems and methods for enabling an optics based compute system associated with transmission and reception28 Apr 2026US 12,615,090 B2Lightspeed Photonics Private Limited
- Managing back-side processing of photonic integrated circuits3 Feb 2026US 12,541,059 B2Ciena Corporation
- Photonic device with fiducial marks for alignment of an optical component13 Jan 2026US 12,523,817 B2Sivers Photonics Limited
- Fiber array unit adapter with high-contrast fiducial structures27 Aug 2026US 2026/0251852 A1Corning Research & Development Corporation
- Optical fiber positioning device23 Jul 2026US 2026/0211190 A1GLOBALFOUNDRIES U. S. Inc.
- Optical transmission device and combination method thereof16 Jul 2026US 2026/0202625 A1QuantumZ Inc.
- Photonics chip structure and semiconductor package including the same4 Jun 2026US 2026/0153696 A1Samsung Electronics Co., Ltd.
- LIDAR System Having Optical Components Coupled Together with Solder28 May 2026US 2026/0147093 A1Aurora Operations, Inc.
Most cited
By later US patents
- Method of manufacturing surface textured high-efficiency radiating devices and devices obtained therefrom275US 6,504,180 B1Bruseel · 2003
- Optoelectroinc mount including flexible substrate and method for making same127US 5,249,245 AMotorola, Inc. · 1993
- Single in-line optical package125US 5,337,398 AAT&T Bell Laboratories · 1994
- Parallel optical interconnect124US 5,631,988 AVixel Corporation · 1997
- Method for fabricating a hybrid optical integrated circuit employing SOI optical waveguide109US 6,316,281 B1Electronics and Telecommunications Research Institute · 2001