G02B 27/46
Systems using spatial filters
G02B27/46 (Systems using spatial filters) appears on 589 US grants and 403 published applications in this corpus.
Search patents in G02B- Granted patents
- 589
- Published applications
- 403
- Assignees
- 318
- Inventors
- 1,056
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 15 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 8 | 0 |
| 1989 | 13 | 0 |
| 1990 | 11 | 0 |
| 1991 | 10 | 0 |
| 1992 | 7 | 0 |
| 1993 | 7 | 0 |
| 1994 | 12 | 0 |
| 1995 | 19 | 0 |
| 1996 | 12 | 0 |
| 1997 | 13 | 0 |
| 1998 | 22 | 0 |
| 1999 | 11 | 0 |
| 2000 | 14 | 0 |
| 2001 | 9 | 4 |
| 2002 | 13 | 14 |
| 2003 | 10 | 15 |
| 2004 | 9 | 16 |
| 2005 | 18 | 10 |
| 2006 | 13 | 31 |
| 2007 | 10 | 27 |
| 2008 | 20 | 27 |
| 2009 | 24 | 16 |
| 2010 | 22 | 21 |
| 2011 | 18 | 24 |
| 2012 | 17 | 13 |
| 2013 | 20 | 12 |
| 2014 | 15 | 14 |
| 2015 | 12 | 15 |
| 2016 | 15 | 14 |
| 2017 | 15 | 21 |
| 2018 | 16 | 25 |
| 2019 | 21 | 15 |
| 2020 | 11 | 14 |
| 2021 | 22 | 19 |
| 2022 | 14 | 9 |
| 2023 | 7 | 11 |
| 2024 | 6 | 4 |
| 2025 | 8 | 10 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical 4f system performing extended convolution operation and operating method thereof22 Sep 2026US 12,743,880 B2Electronics and Telecommunications Research Institute
- Optical system for reducing disturbing optical effects and for correcting vison defects28 Apr 2026US 12,613,399 B2Carl Zeiss AG
- Totagraphy for superresolution imaging and signal processing of positive, real-valued images and signals17 Mar 2026US 12,579,803 B2Wavefront Analysis Systems LLC
- Light field imaging device and method for depth acquisition and three-dimensional imaging18 Nov 2025US 12,474,509 B2Airy3D Inc.
- Imaging system and method for imaging objects with reduced image blur4 Nov 2025US 12,462,353 B2Ramot at Tel-Aviv University Ltd.
- One- and Two-Dimensional Spectral-Spatial Filters7 May 2026US 2026/0126383 A1United States of America as represented by the Administrator of NASA
- Imaging system and method for imaging objects with reduced image blur5 Feb 2026US 2026/0038099 A1Ramot at Tel-Aviv University Ltd.
- Design and optimization of diffractive lensless cameras for imaging and computer vision applications11 Dec 2025US 2025/0377536 A1William Marsh Rice University
- Single viewpoint tomography system using point spread functions of tilted pseudo-nondiffracting beams9 Oct 2025US 2025/0314871 A1B. G. Negev Technologies and Applications Ltd., At Ben-Gurion University
- Class-specific diffractive camera with all-optical erasure of undesired objects9 Oct 2025US 2025/0317658 A1The Regents of the University of California
Most cited
By later US patents
- Extended depth of field optical systems303US 5,748,371 AThe Regents of the University of Colorado · 1998
- Real time optical correlation system299US 5,327,286 ATexas Instruments Incorporated · 1994
- Wavefront coding phase contrast imaging systems282US 6,525,302 B2The Regents of the University of Colorado · 2003
- Wavefront coding optics156US 6,842,297 B2CDM Optics, Inc. · 2005
- Method and device for representing an object154US 6,909,105 B1Max-Planck-Gesellschaft Zur FöRderung Der Wissenschaften E. V. · 2005