G02F 1/01
Devices or arrangements for the control of the intensity, colour, phase, polarisation
Official title: for the control of the intensity, phase, polarisation or colour (G02F1/29, G02F1/35 take precedence)
G02F1/01 (Devices or arrangements for the control of the intensity, colour, phase, polarisation) appears on 92,936 US grants and 100,784 published applications in this corpus.
Search patents in G02F- Granted patents
- 92,936
- Published applications
- 100,784
- Assignees
- 8,679
- Inventors
- 88,931
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 245 | 0 |
| 1977 | 173 | 0 |
| 1978 | 191 | 0 |
| 1979 | 103 | 0 |
| 1980 | 197 | 0 |
| 1981 | 198 | 0 |
| 1982 | 129 | 0 |
| 1983 | 216 | 0 |
| 1984 | 199 | 0 |
| 1985 | 233 | 0 |
| 1986 | 202 | 0 |
| 1987 | 353 | 0 |
| 1988 | 383 | 0 |
| 1989 | 439 | 0 |
| 1990 | 397 | 0 |
| 1991 | 472 | 0 |
| 1992 | 602 | 0 |
| 1993 | 547 | 0 |
| 1994 | 591 | 0 |
| 1995 | 643 | 0 |
| 1996 | 790 | 0 |
| 1997 | 799 | 0 |
| 1998 | 1200 | 0 |
| 1999 | 1084 | 0 |
| 2000 | 1302 | 0 |
| 2001 | 1421 | 781 |
| 2002 | 1405 | 2314 |
| 2003 | 1769 | 2438 |
| 2004 | 2017 | 2973 |
| 2005 | 1911 | 3491 |
| 2006 | 2191 | 3687 |
| 2007 | 1998 | 4012 |
| 2008 | 2213 | 3928 |
| 2009 | 2573 | 4097 |
| 2010 | 3205 | 4001 |
| 2011 | 3213 | 3643 |
| 2012 | 3286 | 3815 |
| 2013 | 3261 | 3965 |
| 2014 | 3419 | 4363 |
| 2015 | 3653 | 4899 |
| 2016 | 4039 | 5477 |
| 2017 | 4495 | 5295 |
| 2018 | 4410 | 5645 |
| 2019 | 5417 | 5546 |
| 2020 | 5099 | 4991 |
| 2021 | 4321 | 5153 |
| 2022 | 4038 | 3884 |
| 2023 | 3565 | 3659 |
| 2024 | 3674 | 3901 |
| 2025 | 3099 | 2890 |
| 2026 | 1556 | 1936 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G02F 1/13Based on liquid crystals76,957
- G02F 1/15Based on an electrochromic effect4,312
- G02F 1/21By interference3,441
- G02F 1/165Based on translational movement of particles in a fluid under the influence2,992
- G02F 1/015Based on semiconductor elements having potential barriers2,631
- G02F 1/03Based on ceramics or electro-optical crystals2,325
- G02F 1/0147Based on thermo-optic effects1,429
- G02F 1/0121Operation of devices1,344
All 21 subgroupsShow fewer
- G02F 1/09Based on magneto-optical elements1,226
- G02F 1/011In optical waveguides, not otherwise provided for in this subclass990
- G02F 1/0136For the control of polarisation942
- G02F 1/11Based on acousto-optical elements768
- G02F 1/0126Opto-optical modulation, i.e. control of one light beam by another light beam504
- G02F 1/17Based on variable-absorption elements not provided for in groups g02f1/015 - g02f1/169474
- G02F 1/0102Constructional details, not otherwise provided for in this subclass470
- G02F 1/0128Based on electro-mechanical, magneto-mechanical, elasto-optic effects461
- G02F 1/061Based on electro-optical organic material455
- G02F 1/19Based on variable-reflection or variable-refraction elements not provided for in groups g02f1/015289
- G02F 1/23For the control of the colour137
- G02F 1/07Based on electro-optical liquids exhibiting kerr effect44
- G02F 1/169Based on orientable non-spherical particles having a common optical characteristic40
Recent patents
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- Ink composition, film using the same, and electrophoretic display device8 Oct 2026US 2026/0308408 A1Samsung Display Co., Ltd.
- Polyamide-imide-based film, preparation method thereof, and cover window and display device comprising the same8 Oct 2026US 2026/0308414 A1Microworks Solutions Co., Ltd.
- Electrochromic devices containing Dyes with donor-acceptor structure8 Oct 2026US 2026/0308444 A1Glass Dyenamics, Inc.
Most cited
By later US patents
- Methods for forming liquid crystal displays including thin film transistors and gate pads having a particular structure4,059US 5,731,856 ASamsung Electronics Co., Ltd. · 1998
- Semiconductor device having a transparent switching element3,952US 5,744,864 AU. S. Philips Corporation · 1998
- Multipoint touchscreen3,397US 7,663,607 B2Apple Inc. · 2010
- Stable conjugated polymer electrochromic devices incorporating ionic liquids1,453US 6,667,825 B2Santa Fe Science and Technology, Inc. · 2003
- Electrochromic mirrors and devices1,077US 5,724,187 ADonnelly Corporation · 1998