G02B 21/08
Condensers
G02B21/08 (Condensers) appears on 1,671 US grants and 1,839 published applications in this corpus.
Search patents in G02B- Granted patents
- 1,671
- Published applications
- 1,839
- Assignees
- 764
- Inventors
- 3,287
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 7 | 0 |
| 1979 | 5 | 0 |
| 1980 | 10 | 0 |
| 1981 | 11 | 0 |
| 1982 | 6 | 0 |
| 1983 | 8 | 0 |
| 1984 | 7 | 0 |
| 1985 | 9 | 0 |
| 1986 | 11 | 0 |
| 1987 | 9 | 0 |
| 1988 | 11 | 0 |
| 1989 | 17 | 0 |
| 1990 | 8 | 0 |
| 1991 | 12 | 0 |
| 1992 | 10 | 0 |
| 1993 | 7 | 0 |
| 1994 | 10 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 11 | 0 |
| 1998 | 18 | 0 |
| 1999 | 21 | 0 |
| 2000 | 9 | 0 |
| 2001 | 23 | 12 |
| 2002 | 22 | 22 |
| 2003 | 19 | 26 |
| 2004 | 16 | 44 |
| 2005 | 23 | 35 |
| 2006 | 31 | 29 |
| 2007 | 22 | 33 |
| 2008 | 26 | 30 |
| 2009 | 29 | 52 |
| 2010 | 26 | 56 |
| 2011 | 26 | 44 |
| 2012 | 37 | 51 |
| 2013 | 33 | 71 |
| 2014 | 46 | 77 |
| 2015 | 60 | 80 |
| 2016 | 60 | 93 |
| 2017 | 77 | 132 |
| 2018 | 80 | 114 |
| 2019 | 120 | 118 |
| 2020 | 121 | 131 |
| 2021 | 99 | 126 |
| 2022 | 99 | 114 |
| 2023 | 84 | 99 |
| 2024 | 84 | 98 |
| 2025 | 97 | 81 |
| 2026 | 66 | 71 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G02B 21/082For incident illumination only531
- G02B 21/14Affording illumination for phase-contrast observation439
- G02B 21/086For transillumination only254
- G02B 21/10Affording dark-field illumination220
- G02B 21/12Affording bright-field illumination210
- G02B 21/088For both incident illumination and transillumination121
Recent patents
- Optical apparatus for laser annealing15 Sep 2026US 12,736,790 B2International Business Machines Corporation
- Microscope system15 Sep 2026US 12,736,793 B2Evident Corporation
- Angled illumination system for microfluidic devices15 Sep 2026US 12,736,824 B2Standard Biotools Inc.
- Image sensor and electronic camera15 Sep 2026US 12,739,532 B2Nikon Corporation
- Scanning optical microscope8 Sep 2026US 12,730,289 B2Phomedics Limited
- An imaging device and a method for imaging8 Oct 2026US 2026/0309967 A1Imec Vzw
- Method and system for enhanced photon microscopy8 Oct 2026US 2026/0309969 A1Temple University of the Commonwealth System of Higher Education
- Microscope and Microscopy Method1 Oct 2026US 2026/0299275 A1
- Method of improved bright field-dark field metrology1 Oct 2026US 2026/0299276 A1Nanoverse Technologies Ltd
- Optical microscope and performance determination method24 Sep 2026US 2026/0287873 A1Evident Corporation
Most cited
By later US patents
- Fully automatic rapid microscope slide scanner312US 6,711,283 B1Aperio Technologies, Inc. · 2004
- Scanning confocal microscope including a single fibre for transmitting light to and receiving light from an object271US 5,120,953 A1992
- Long working distance interference microscope187US 6,721,094 B1Sandia Corporation · 2004
- Electrical illumination and detecting apparatus177US 4,806,776 A1989
- Surface illuminator with means for adjusting orientation and inclination of incident illumination171US 5,690,417 AOptical Gaging Products, Inc. · 1997