G02F 1/21
By interference
Official title: by interference
G02F1/21 (By interference) appears on 3,441 US grants and 3,503 published applications in this corpus.
Search patents in G02F- Granted patents
- 3,441
- Published applications
- 3,503
- Assignees
- 1,033
- Inventors
- 5,487
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 7 | 0 |
| 1981 | 10 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 6 | 0 |
| 1985 | 10 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 19 | 0 |
| 1989 | 20 | 0 |
| 1990 | 12 | 0 |
| 1991 | 28 | 0 |
| 1992 | 34 | 0 |
| 1993 | 36 | 0 |
| 1994 | 34 | 0 |
| 1995 | 36 | 0 |
| 1996 | 26 | 0 |
| 1997 | 31 | 0 |
| 1998 | 42 | 0 |
| 1999 | 33 | 0 |
| 2000 | 29 | 0 |
| 2001 | 61 | 16 |
| 2002 | 52 | 105 |
| 2003 | 85 | 132 |
| 2004 | 97 | 118 |
| 2005 | 94 | 98 |
| 2006 | 103 | 86 |
| 2007 | 82 | 83 |
| 2008 | 86 | 64 |
| 2009 | 65 | 105 |
| 2010 | 83 | 109 |
| 2011 | 78 | 96 |
| 2012 | 68 | 91 |
| 2013 | 91 | 80 |
| 2014 | 104 | 113 |
| 2015 | 119 | 146 |
| 2016 | 151 | 151 |
| 2017 | 159 | 160 |
| 2018 | 140 | 169 |
| 2019 | 186 | 179 |
| 2020 | 157 | 172 |
| 2021 | 156 | 190 |
| 2022 | 160 | 225 |
| 2023 | 148 | 198 |
| 2024 | 175 | 246 |
| 2025 | 180 | 225 |
| 2026 | 119 | 146 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electro-optic device containing ferroelectric layer and integrated heaters and method of fabrication thereof29 Sep 2026US 12,748,325 B1Psiquantum, Corp.
- Photonic devices having a field-effect transistor (FET)29 Sep 2026US 12,748,337 B2Hewlett Packard Enterprise Development LP
- Systems and methods for clock generation and calibration in photonic systems29 Sep 2026US 12,750,045 B2Avago Technologies International Sales Pte. Limited
- Optical device and method of fabricating thereof22 Sep 2026US 12,742,994 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Optical device, optical transceiving device, and optical transceiver8 Sep 2026US 12,730,347 B2Fujitsu Optical Components Limited
- Mach-zehnder interferometer tolerant to process and environmental variations8 Oct 2026US 2026/0310040 A1InfiniLink Inc.
- Tunable optical fading in a receiver to improve out of band rejection for variable baud1 Oct 2026US 2026/0299205 A1Ciena Corporation
- Integrated photonic 2x3 coupler1 Oct 2026US 2026/0299208 A1Cisco Technology, Inc.
- Integrated photonic isolator1 Oct 2026US 2026/0299324 A1Lightmatter, Inc.
- Distributed electro-absorption modulator systems1 Oct 2026US 2026/0299326 A1ElectroPhotonic-IC Inc.
Most cited
By later US patents
- Interferometric modulation of radiation1,041US 6,674,562 B1Iridigm Display Corporation · 2004
- Interferometric modulation of radiation856US 6,680,792 B2Iridigm Display Corporation · 2004
- Controlling micro-electro-mechanical cavities673US 6,710,908 B2Iridigm Display Corporation · 2004
- Interferometric modulation of radiation436US 6,867,896 B2Idc, LLC · 2005
- Nanocomposite materials with engineered properties395US 6,710,366 B1UltraDots, Inc. · 2004