G01J 4/04
Polarimeters using electric detection means
Official title: Polarimeters using electric detection means (G01J4/02 takes precedence)
G01J4/04 (Polarimeters using electric detection means) appears on 576 US grants and 548 published applications in this corpus.
Search patents in G01J- Granted patents
- 576
- Published applications
- 548
- Assignees
- 385
- Inventors
- 1,231
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 9 | 0 |
| 2001 | 9 | 2 |
| 2002 | 5 | 10 |
| 2003 | 15 | 16 |
| 2004 | 16 | 18 |
| 2005 | 10 | 20 |
| 2006 | 19 | 27 |
| 2007 | 30 | 21 |
| 2008 | 19 | 16 |
| 2009 | 21 | 18 |
| 2010 | 20 | 20 |
| 2011 | 11 | 18 |
| 2012 | 12 | 12 |
| 2013 | 14 | 18 |
| 2014 | 18 | 20 |
| 2015 | 22 | 23 |
| 2016 | 21 | 26 |
| 2017 | 23 | 19 |
| 2018 | 30 | 25 |
| 2019 | 28 | 29 |
| 2020 | 33 | 29 |
| 2021 | 28 | 36 |
| 2022 | 27 | 31 |
| 2023 | 18 | 35 |
| 2024 | 31 | 28 |
| 2025 | 26 | 21 |
| 2026 | 15 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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
- Polarization state monitoring apparatus, polarization state monitoring method, and non-transitory computer-readable medium17 Sep 2026US 2026/0280701 A1NEC Corporation
- Polarimetric phase imaging13 Aug 2026US 2026/0235445 A1Centre National De La Recherche Scientifique
- Systems and methods for mueller matrix imaging13 Aug 2026US 2026/0235495 A1President and Fellows of Harvard College
- Multiple wavelength ellipsometer system and method of use30 Jul 2026US 2026/0219167 A1Film Sense, LLC
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
- Optical detector168US 9,557,856 B2BASF SE · 2017
- Optical detector148US 10,012,532 B2BASF SE · 2018
- Single camera color and infrared polarimetric imaging144US 8,411,146 B2Lockheed Martin Corporation · 2013
- Polorization viewer117US 5,557,324 AThe Johns Hopkins University · 1996