G01J 4/00
Measuring polarisation of light
G01J4/00 (Measuring polarisation of light) appears on 951 US grants and 775 published applications in this corpus.
Search patents in G01J- Granted patents
- 951
- Published applications
- 775
- Assignees
- 522
- Inventors
- 1,775
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 11 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 10 | 0 |
| 1995 | 10 | 0 |
| 1996 | 11 | 0 |
| 1997 | 4 | 0 |
| 1998 | 23 | 0 |
| 1999 | 21 | 0 |
| 2000 | 31 | 0 |
| 2001 | 24 | 8 |
| 2002 | 20 | 19 |
| 2003 | 25 | 34 |
| 2004 | 42 | 34 |
| 2005 | 20 | 33 |
| 2006 | 37 | 41 |
| 2007 | 50 | 27 |
| 2008 | 32 | 18 |
| 2009 | 29 | 29 |
| 2010 | 26 | 26 |
| 2011 | 19 | 24 |
| 2012 | 19 | 17 |
| 2013 | 21 | 30 |
| 2014 | 26 | 33 |
| 2015 | 31 | 34 |
| 2016 | 33 | 36 |
| 2017 | 37 | 30 |
| 2018 | 41 | 33 |
| 2019 | 36 | 36 |
| 2020 | 41 | 33 |
| 2021 | 33 | 42 |
| 2022 | 36 | 39 |
| 2023 | 21 | 41 |
| 2024 | 40 | 38 |
| 2025 | 31 | 27 |
| 2026 | 19 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polarizer and analyzer configuration optimization method and polarizing and analyzing system8 Sep 2026US 12,730,062 B2Tsinghua Shenzhen International Graduate School
- System and method for imaging with a pixelated metasurface waveplate and a uniform polarizer18 Aug 2026US 12,710,313 B2Corning Incorporated
- Optical isolator based on volume Bragg gratings18 Aug 2026US 12,710,578 B2University of Central Florida Foundation, Inc.
- Polarized image enhancement using deep neural networks18 Aug 2026US 12,711,752 B2SRI International
- Circular polarizer detection device and circular polarizer detection method21 Jul 2026US 12,687,433 B2National Central University
- Integrated circuit for measuring magnetic fields and for measuring the polarisation of light1 Oct 2026US 2026/0299053 A1POLDI Microelectronics GmbH
- Scalable nanoimprint manufacturing of functional multi-layer metasurface devices24 Sep 2026US 2026/0287787 A1Arizona Board of Regents on behalf of Arizona State University
- Polarization state monitoring apparatus, polarization state monitoring method, and non-transitory computer-readable medium17 Sep 2026US 2026/0280701 A1NEC Corporation
- Spoof-Resistant Facial Recognition Through Illumination and Imaging Engineering10 Sep 2026US 2026/0268711 A1Metalenz, Inc.
- Apparatus and method for semiconductor oxide film ellipsometric amplitude sensor20 Aug 2026US 2026/0243660 A1Korea Research Institue of Standards and Science
Most cited
By later US patents
- Method and apparatus for obtaining information from polarization-sensitive optical coherence tomography292US 6,961,123 B1The Texas A&M University System · 2005
- Combinatorial synthesis and analysis of organometallic compounds and catalysts245US 6,030,917 ASymyx Technologies, Inc. · 2000
- Mass spectrometers and methods for rapid screening of libraries of different materials218US 5,959,297 ASymyx Technologies, Inc. · 1999
- Imaging system using polarization effects to enhance image quality180US 6,134,010 ALucid, Inc. · 2000
- Optical detector168US 9,557,856 B2BASF SE · 2017