G02F 2201/30
Grating
Official title: grating
G02F2201/30 (Grating) appears on 1,044 US grants and 949 published applications in this corpus.
Search patents in G02F- Granted patents
- 1,044
- Published applications
- 949
- Assignees
- 490
- Inventors
- 2,228
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 7 | 0 |
| 1995 | 15 | 0 |
| 1996 | 17 | 0 |
| 1997 | 14 | 0 |
| 1998 | 14 | 0 |
| 1999 | 21 | 0 |
| 2000 | 33 | 0 |
| 2001 | 38 | 12 |
| 2002 | 39 | 45 |
| 2003 | 39 | 49 |
| 2004 | 46 | 46 |
| 2005 | 30 | 41 |
| 2006 | 39 | 30 |
| 2007 | 24 | 31 |
| 2008 | 29 | 28 |
| 2009 | 22 | 34 |
| 2010 | 23 | 30 |
| 2011 | 12 | 13 |
| 2012 | 19 | 26 |
| 2013 | 18 | 20 |
| 2014 | 30 | 17 |
| 2015 | 21 | 31 |
| 2016 | 25 | 25 |
| 2017 | 23 | 41 |
| 2018 | 28 | 66 |
| 2019 | 56 | 71 |
| 2020 | 65 | 57 |
| 2021 | 68 | 51 |
| 2022 | 54 | 60 |
| 2023 | 46 | 44 |
| 2024 | 43 | 40 |
| 2025 | 37 | 20 |
| 2026 | 8 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Spectroscopic system15 Sep 2026US 12,736,402 B2FUJIFILM Corporation
- Liquid crystal grating and display device11 Aug 2026US 12,704,754 B2Shanghai Tianma Microelectronics Co., Ltd.
- Electro-optical device16 Jun 2026US 12,656,635 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Optical modulator and image projector based on leaky-mode waveguide with spatial multiplexing28 Apr 2026US 12,613,446 B2Meta Platforms Technologies, LLC
- Beam-steering device and method for spatial steering of a light beam14 Apr 2026US 12,601,951 B2MAX-PLANCK-GESELLSCHAFT zur FOERDERUNG der WISSENSCHAFTEN.e.V
- Preparation method and application for ferroelectric liquid crystal material grating at room temperature based on femtosecond laser direct writing1 Oct 2026US 2026/0299322 A1Nanjing University
- Method of forming electro-optical device17 Sep 2026US 2026/0277032 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Optical circuit and production method of the same3 Sep 2026US 2026/0259436 A1Nichia Corporation
- Light beam deflection device and laser radar27 Aug 2026US 2026/0251766 A1Boe Technology Group Co., Ltd.
- Method for controlling refractive index of planar waveguide20 Aug 2026US 2026/0244068 A1Dispelix Oy
Most cited
By later US patents
- Optical displays419US 8,233,204 B1Rockwell Collins, Inc. · 2012
- Switchable optical components377US 6,567,573 B1DigiLens Inc. · 2003
- Display panel with electrically-controlled waveguide-routing299US 5,544,268 ADeacon Research · 1996
- Display panel with electrically-controlled waveguide-routing291US 6,522,794 B1Gemfire Corporation · 2003
- Microwave receiver front-end assembly and array245US 7,835,600 B1HRL Laboratories, LLC · 2010