G02F 1/311
Cascade arrangement of plural switches
Official title: {Cascade arrangement of plural switches}
G02F1/311 (Cascade arrangement of plural switches) appears on 68 US grants and 81 published applications in this corpus.
Search patents in G02F- Granted patents
- 68
- Published applications
- 81
- Assignees
- 57
- Inventors
- 187
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 2 |
| 2003 | 3 | 0 |
| 2004 | 1 | 3 |
| 2005 | 1 | 3 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 2 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 2 |
| 2012 | 0 | 1 |
| 2013 | 3 | 3 |
| 2014 | 0 | 2 |
| 2015 | 3 | 2 |
| 2016 | 3 | 3 |
| 2017 | 5 | 4 |
| 2018 | 1 | 9 |
| 2019 | 6 | 5 |
| 2020 | 8 | 4 |
| 2021 | 2 | 5 |
| 2022 | 2 | 6 |
| 2023 | 5 | 6 |
| 2024 | 5 | 5 |
| 2025 | 5 | 6 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Switched spatial tensor data manipulation with photonics25 Aug 2026US 12,717,872 B2Lightmatter, Inc.
- Switchyard beam routing of patterned light for additive manufacturing27 Jan 2026US 12,533,849 B2Seurat Technologies, Inc.
- Systems, devices, articles, and methods to direct optical signals using luminescent defects in semiconductor material4 Nov 2025US 12,461,397 B2Photonic Inc.
- Programmable optical chip and terminal4 Nov 2025US 12,461,424 B2United Microelectronics Center Co., Ltd
- Optical coupling device with adjustable coupling coefficient28 Oct 2025US 12,455,488 B2Salience Labs Ltd
- An optical coupling device6 Aug 2026US 2026/0230188 A1Salience Labs Ltd
- Switchyard Beam Routing Of Patterned Light For Additive Manufacturing4 Jun 2026US 2026/0151960 A1Seurat Technologies, Inc.
- Amplifier Enhanced Optical Signal Spectrum Filtering Method and System16 Apr 2026US 2026/0104621 A1II-Vi Delaware, Inc.
- Photonic network19 Feb 2026US 2026/0050198 A1Cognifiber Ltd.
- Optical coupling device with adjustable coupling coefficient8 Jan 2026US 2026/0010050 A1Salience Labs Ltd
Most cited
By later US patents
- Holographic waveguide eye tracker84US 10,209,517 B2DigiLens Inc. · 2019
- Integrated optical beam steering system74US 10,345,519 B1Microsoft Technology Licensing, LLC · 2019
- Optical space switches using cascaded coupled-waveguide optical gate arrays52US 4,934,775 AGTE Laboratories Incorporated · 1990
- Hybrid photonic non-blocking wide spectrum WDM on-chip router37US 10,564,512 B2The George Washington University · 2020
- Methods and systems for optical beam steering30US 10,261,389 B2Massachusetts Institute of Technology · 2019