G02F 1/3138
The optical waveguides being made of semiconducting materials
Official title: {the optical waveguides being made of semiconducting materials}
G02F1/3138 (The optical waveguides being made of semiconducting materials) appears on 98 US grants and 54 published applications in this corpus.
Search patents in G02F- Granted patents
- 98
- Published applications
- 54
- Assignees
- 53
- Inventors
- 203
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 3 |
| 2004 | 1 | 4 |
| 2005 | 6 | 3 |
| 2006 | 1 | 2 |
| 2007 | 2 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 0 | 3 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 0 | 0 |
| 2015 | 3 | 2 |
| 2016 | 2 | 1 |
| 2017 | 1 | 3 |
| 2018 | 2 | 6 |
| 2019 | 5 | 1 |
| 2020 | 2 | 2 |
| 2021 | 0 | 4 |
| 2022 | 2 | 2 |
| 2023 | 6 | 7 |
| 2024 | 3 | 2 |
| 2025 | 0 | 1 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device for switching optical signal5 May 2026US 12,619,124 B2Electronics and Telecommunications Research Institute
- System, method and apparatus for non-mechanical optical and photonic beam steering14 Apr 2026US 12,601,950 B2Exciting Technology LLC
- Optical switches based on induced optical loss17 Feb 2026US 12,554,174 B2Psiquantum, Corp.
- 1 x N optical switch15 Oct 2024US 12,117,712 B2Nippon Telegraph and Telephone Corporation
- System, method and apparatus for non-mechanical optical and photonic beam steering6 Aug 2024US 12,055,836 B2Exciting Technology LLC
- Optical Switches Based on Induced Optical Loss4 Jun 2026US 2026/0153778 A1Psiquantum, Corp.
- Optical phased array, laser assembly and method for operating same24 Jul 2025US 2025/0237821 A1ams-OSRAM International GmbH
- Optical Switches Based on Induced Optical Loss31 Oct 2024US 2024/0361663 A1Psiquantum, Corp.
- Optical Switches Based on Induced Optical Loss12 Sep 2024US 2024/0302708 A1Psiquantum, Corp.
- Device for switching optical signal23 Nov 2023US 2023/0375896 A1Electronics and Telecommunications Research Institute
Most cited
By later US patents
- Integrated silicon pin diode electro-optic waveguide93US 5,757,986 ABookham Technology PLC · 1998
- Electro-optic device78US 5,908,305 ABookham Technology PLC · 1999
- Optically controlled integrated optical switch68US 4,693,547 AThe United States of America as represented by the Secretary of the Air Force · 1987
- Asymmetric Y-branch optical device57US 5,333,219 AAT&T Bell Laboratories · 1994
- Electrically controlled integrated optical switch56US 4,728,167 AThe United States of America as represented by the Secretary of the Air Force · 1988