G02F 1/0121
Operation of devices
Official title: {Operation of devices; Circuit arrangements, not otherwise provided for in this subclass}
G02F1/0121 (Operation of devices) appears on 1,344 US grants and 1,384 published applications in this corpus.
Search patents in G02F- Granted patents
- 1,344
- Published applications
- 1,384
- Assignees
- 558
- Inventors
- 2,658
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 9 | 0 |
| 1997 | 7 | 0 |
| 1998 | 19 | 0 |
| 1999 | 11 | 0 |
| 2000 | 8 | 0 |
| 2001 | 20 | 8 |
| 2002 | 17 | 25 |
| 2003 | 30 | 42 |
| 2004 | 35 | 36 |
| 2005 | 21 | 40 |
| 2006 | 46 | 22 |
| 2007 | 20 | 32 |
| 2008 | 30 | 32 |
| 2009 | 18 | 34 |
| 2010 | 35 | 20 |
| 2011 | 19 | 20 |
| 2012 | 28 | 34 |
| 2013 | 27 | 31 |
| 2014 | 32 | 49 |
| 2015 | 48 | 68 |
| 2016 | 66 | 81 |
| 2017 | 91 | 105 |
| 2018 | 82 | 106 |
| 2019 | 112 | 81 |
| 2020 | 71 | 86 |
| 2021 | 80 | 82 |
| 2022 | 65 | 68 |
| 2023 | 55 | 68 |
| 2024 | 69 | 79 |
| 2025 | 73 | 83 |
| 2026 | 48 | 52 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rapidly reversible and wavelength-tunable photochromic compositions, systems, and methods6 Oct 2026US 12,754,443 B1HRL Laboratories, LLC
- Systems and methods for clock generation and calibration in photonic systems29 Sep 2026US 12,750,045 B2Avago Technologies International Sales Pte. Limited
- Rapid-darkening, wavelength-tunable photochromic compositions, systems, and methods15 Sep 2026US 12,735,628 B1HRL Laboratories, LLC
- Self-adjusted automatic bias control of an electro-absorption modulator15 Sep 2026US 12,736,838 B2ARRIS Enterprises LLC
- Optical transmission device, communication device, control method and recording medium8 Sep 2026US 12,732,279 B2NEC Corporation
- Optical modulator, optical transmitter, and method for controlling operating point of optical modulator1 Oct 2026US 2026/0299323 A1NEC Corporation
- Distributed electro-absorption modulator systems1 Oct 2026US 2026/0299326 A1ElectroPhotonic-IC Inc.
- Electrical interconnects for packages containing photonic integrated circuits1 Oct 2026US 2026/0305479 A1Sicily Merger Sub II, Inc.
- Hybrid liquid crystal lens and method for driving thereof17 Sep 2026US 2026/0277071 A1IXI Eyewear Oy
- Lighting apparatus10 Sep 2026US 2026/0267209 A1Sony Group Corporation
Most cited
By later US patents
- Signature filter system544US 4,944,036 A1990
- Illumination signal processing system211US 4,614,415 A1986
- Opto-electronic oscillator having a positive feedback with an open loop gain greater than one153US 5,723,856 ACalifornia Institute of Technology · 1998
- Brillouin opto-electronic oscillators123US 5,917,179 ACalifornia Institute of Technology · 1999
- Method of and device for driving optical modulator, and optical communications system118US 5,917,637 AFujitsu Limited · 1999