G02F 1/0151
Modulating the refractive index
Official title: {modulating the refractive index}
G02F1/0151 (Modulating the refractive index) appears on 409 US grants and 381 published applications in this corpus.
Search patents in G02F- Granted patents
- 409
- Published applications
- 381
- Assignees
- 206
- Inventors
- 815
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 9 | 0 |
| 1990 | 8 | 0 |
| 1991 | 8 | 0 |
| 1992 | 8 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 0 |
| 2002 | 8 | 5 |
| 2003 | 11 | 29 |
| 2004 | 10 | 7 |
| 2005 | 11 | 7 |
| 2006 | 7 | 7 |
| 2007 | 5 | 3 |
| 2008 | 5 | 4 |
| 2009 | 2 | 6 |
| 2010 | 8 | 7 |
| 2011 | 4 | 13 |
| 2012 | 8 | 4 |
| 2013 | 7 | 7 |
| 2014 | 5 | 10 |
| 2015 | 13 | 24 |
| 2016 | 25 | 21 |
| 2017 | 34 | 36 |
| 2018 | 25 | 26 |
| 2019 | 21 | 26 |
| 2020 | 27 | 16 |
| 2021 | 16 | 20 |
| 2022 | 18 | 17 |
| 2023 | 15 | 25 |
| 2024 | 19 | 19 |
| 2025 | 16 | 18 |
| 2026 | 11 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Asymmetrical semiconductor-based optical modulator11 Aug 2026US 12,704,759 B2Marvell Asia Pte Ltd
- Compact optical phase shifter23 Jun 2026US 12,663,665 B2Apple Inc.
- High speed spatial light modulator16 Jun 2026US 12,658,673 B2Board of Regents, The University of Texas System
- Microphone component and method of manufacture16 Jun 2026US 12,659,642 B2Sensibel AS
- Apparatus and method for intensity modulation in a photonic computing system based on interferometric coupling9 Jun 2026US 12,650,629 B2Huawei Technologies Canada Co., Ltd.
- High angled photodiode with a refractive-index-modifying region8 Oct 2026US 2026/0310011 A1
- Hybrid electro-optic phase shifters24 Sep 2026US 2026/0287939 A1GLOBALFOUNDRIES U. S. Inc.
- Electroabsorption modulator24 Sep 2026US 2026/0287941 A1Optoway Technology Inc.
- Microphone component and method of manufacture24 Sep 2026US 2026/0292381 A1Sensibel AS
- Silicon optical modulator27 Aug 2026US 2026/0251924 A1Picmore Technology (Suzhou) Ltd.
Most cited
By later US patents
- Planar optical waveguide, modulator, variable coupler and switch158US 4,166,669 AMassachusetts Institute of Technology · 1979
- Optical devices comprising polymer-dispersed crystalline materials96US 6,005,707 ALucent Technologies Inc. · 1999
- Electro-optical silicon devices95US 4,787,691 AThe United States of America as represented by the Secretary of the Air Force · 1988
- Integrated silicon pin diode electro-optic waveguide93US 5,757,986 ABookham Technology PLC · 1998
- Electro-optic device78US 5,908,305 ABookham Technology PLC · 1999