G02B 21/241
Devices for focusing
Official title: {Devices for focusing (focusing in general G02B7/28)}
G02B21/241 (Devices for focusing) appears on 1,086 US grants and 1,172 published applications in this corpus.
Search patents in G02B- Granted patents
- 1,086
- Published applications
- 1,172
- Assignees
- 469
- Inventors
- 1,937
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 12 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 7 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 10 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 11 | 0 |
| 1998 | 10 | 0 |
| 1999 | 10 | 0 |
| 2000 | 12 | 0 |
| 2001 | 8 | 2 |
| 2002 | 8 | 17 |
| 2003 | 15 | 24 |
| 2004 | 18 | 35 |
| 2005 | 18 | 36 |
| 2006 | 25 | 25 |
| 2007 | 19 | 19 |
| 2008 | 23 | 32 |
| 2009 | 19 | 23 |
| 2010 | 26 | 28 |
| 2011 | 18 | 41 |
| 2012 | 20 | 33 |
| 2013 | 25 | 40 |
| 2014 | 31 | 49 |
| 2015 | 28 | 51 |
| 2016 | 41 | 65 |
| 2017 | 58 | 81 |
| 2018 | 59 | 78 |
| 2019 | 80 | 81 |
| 2020 | 85 | 95 |
| 2021 | 66 | 71 |
| 2022 | 74 | 60 |
| 2023 | 42 | 55 |
| 2024 | 58 | 44 |
| 2025 | 48 | 44 |
| 2026 | 44 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatuses for a microscope system, microscope system, methods and computer program6 Oct 2026US 12,754,407 B2Leica Microsystems CMS GmbH
- Substrates for performing quantification processes and related systems and methods29 Sep 2026US 12,748,294 B2Illumina, Inc.
- Semiconductor inspection tool and methods of operation22 Sep 2026US 12,742,954 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Systems and methods for assessing biological samples8 Sep 2026US 12,729,399 B2Life Technologies Corporation
- Reflection mechanisms of microscopic imaging devices, microscopic imaging devices and methods thereof8 Sep 2026US 12,730,296 B2Shanghai Ruiyu Biotech Co., Ltd.
- Portable and low-cost microscopic imaging device3 Sep 2026US 2026/0259399 A1Vital Biosciences Inc.
- Multi-modal microscopic imaging20 Aug 2026US 2026/0240621 A1Bruker Nano, Inc.
- Methods and systems for slide image calibration20 Aug 2026US 2026/0245235 A1
- Sequencer focus quality metrics and focus tracking for periodically patterned surfaces13 Aug 2026US 2026/0235492 A1Illumina, Inc.
- Parallax-based automatic focusing and focus locking method for light field microscopy system6 Aug 2026US 2026/0227619 A1Zhejiang Hehu Technology Co., Ltd.
Most cited
By later US patents
- Fully automatic rapid microscope slide scanner312US 6,711,283 B1Aperio Technologies, Inc. · 2004
- Method and apparatus for automated image analysis of biological specimens245US 6,215,892 B1ChromaVision Medical Systems, Inc. · 2001
- Feature-free registration of dissimilar images using a robust similarity metric205US 6,268,611 B1CellaVision AB · 2001
- Autofocus system for scanning microscopy202US 5,790,710 A1998
- Autofocus system for scanning microscopy having a volume image formation193US 5,932,872 A1999