G01B 9/0209
Low-coherence interferometers
G01B9/0209 (Low-coherence interferometers) appears on 2,319 US grants and 2,735 published applications in this corpus.
Search patents in G01B- Granted patents
- 2,319
- Published applications
- 2,735
- Assignees
- 813
- Inventors
- 3,413
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 7 | 0 |
| 1997 | 8 | 0 |
| 1998 | 8 | 0 |
| 1999 | 21 | 0 |
| 2000 | 25 | 0 |
| 2001 | 20 | 6 |
| 2002 | 13 | 16 |
| 2003 | 27 | 40 |
| 2004 | 21 | 45 |
| 2005 | 25 | 51 |
| 2006 | 47 | 65 |
| 2007 | 33 | 89 |
| 2008 | 68 | 101 |
| 2009 | 78 | 87 |
| 2010 | 73 | 125 |
| 2011 | 100 | 123 |
| 2012 | 68 | 142 |
| 2013 | 111 | 162 |
| 2014 | 125 | 185 |
| 2015 | 133 | 171 |
| 2016 | 145 | 154 |
| 2017 | 168 | 138 |
| 2018 | 139 | 151 |
| 2019 | 142 | 134 |
| 2020 | 118 | 145 |
| 2021 | 122 | 129 |
| 2022 | 114 | 124 |
| 2023 | 91 | 100 |
| 2024 | 90 | 118 |
| 2025 | 97 | 73 |
| 2026 | 50 | 61 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Optical coherence tomograph22 Sep 2026US 12,742,629 B2Furukawa Electric Co., Ltd.
- System and method for high-resolution reflection tomographic imaging22 Sep 2026US 12,742,630 B2Korea Advanced Institute of Science and Technology
- Infrared otoscope for characterization of effusion15 Sep 2026US 12,733,814 B2OtoNexus Medical Technologies, Inc.
- Apparatus and methods for high-speed and long depth range imaging using optical coherence tomography15 Sep 2026US 12,736,751 B2The General Hospital Corporation
- Optical scanning system for non-destructively acquiring three-dimensional structure of object1 Sep 2026US 12,723,989 B2Opxion Technology Inc.
- Shape measurement system, processing apparatus, shape measurement method, processing method, and chip manufacturing method1 Oct 2026US 2026/0298616 A1Disco Corporation
- Apparatus and methods to enhance signal to noise ratio imaging performance in optical coherence tomography24 Sep 2026US 2026/0287326 A1The General Hospital Corporation
- Method and system for optical coherence tomography exploiting truncated singular value decomposition17 Sep 2026US 2026/0276365 A1
- Identification and correction of weld paths using optical coherence tomography10 Sep 2026US 2026/0264171 A1Ipg Photonics Corporation
- Device for carrying out an optical coherence tomography10 Sep 2026US 2026/0266588 A1Heidelberg Engineering GmbH
Most cited
By later US patents
- Method and apparatus for optical imaging with means for controlling the longitudinal range of the sample1,199US 5,321,501 AMassachusetts Institute of Technology · 1994
- Methods and apparatus for forward-directed optical scanning instruments1,184US 6,485,413 B1The General Hospital Corporation · 2002
- Method and apparatus for performing optical measurements using a fiber optic imaging guidewire, catheter or endoscope1,079US 6,134,003 AMassachusetts Institute of Technology · 2000
- Method and apparatus for performing optical measurements1,018US 5,459,570 AMassachusetts Institute of Technology · 1995
- Fiber optic needle probes for optical coherence tomography imaging722US 6,564,087 B1Massachusetts Institute of Technology · 2003