G01N 21/4788
Diffraction
Official title: {Diffraction (for sizing particles G01N15/0205)}
G01N21/4788 (Diffraction) appears on 777 US grants and 886 published applications in this corpus.
Search patents in G01N- Granted patents
- 777
- Published applications
- 886
- Assignees
- 400
- Inventors
- 1,672
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 7 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 5 |
| 2002 | 5 | 19 |
| 2003 | 15 | 30 |
| 2004 | 20 | 45 |
| 2005 | 22 | 36 |
| 2006 | 41 | 43 |
| 2007 | 38 | 49 |
| 2008 | 44 | 61 |
| 2009 | 50 | 37 |
| 2010 | 37 | 34 |
| 2011 | 30 | 34 |
| 2012 | 24 | 23 |
| 2013 | 17 | 24 |
| 2014 | 24 | 28 |
| 2015 | 20 | 31 |
| 2016 | 25 | 32 |
| 2017 | 26 | 34 |
| 2018 | 36 | 48 |
| 2019 | 56 | 58 |
| 2020 | 45 | 43 |
| 2021 | 37 | 44 |
| 2022 | 38 | 30 |
| 2023 | 23 | 32 |
| 2024 | 20 | 31 |
| 2025 | 27 | 20 |
| 2026 | 11 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Self-referencing spectral constraint-based spectral reconstruction method and apparatus, device, and medium22 Sep 2026US 12,742,679 B2National University of Defense Technology
- Color diffraction test device and test method thereof, and color diffraction test system15 Sep 2026US 12,736,473 B2Boe Technology Group Co., Ltd.
- Biological information measurement device, biological information measurement method, and computer-readable recording medium25 Aug 2026US 12,716,886 B2Furukawa Electric Co., Ltd.
- Measurement device, measurement system, and measurement method28 Jul 2026US 12,693,245 B2Kioxia Corporation
- System and method for suppression of tool induced shift in scanning overlay metrology30 Jun 2026US 12,669,327 B2KLA Corporation
- Metrology apparatus and metrology methods based on high harmonic generation from a diffractive structure1 Oct 2026US 2026/0298820 A1ASML Netherlands B. V.
- Optical foreign matter inspection device and program27 Aug 2026US 2026/0251582 A1Hitachi High-Tech Corporation
- Harmonic Gratings Utilizing Evacuated Periodic Structures27 Aug 2026US 2026/0251829 A1DigiLens Inc.
- Self-referencing spectral constraint-based spectral reconstruction method and apparatus, device, and medium30 Jul 2026US 2026/0219107 A1National University of Defense Technology
- Ultrafast diffraction imaging system and method, and storage medium18 Jun 2026US 2026/0168926 A1Wuyi University
Most cited
By later US patents
- Methods and systems for laser speckle imaging of tissue using a color image sensor259US 10,169,862 B2Novadaq Technologies ULC · 2019
- Polymerized crystalline colloidal array sensor methods243US 5,854,078 AUniversity of Pittsburgh · 1998
- Optical biosensor matrix193US 5,738,825 AArtificial Sensing Instruments ASI AG · 1998
- Biosensing devices which produce diffraction images181US 5,922,550 AKimberly-Clark Worldwide, Inc. · 1999
- Light imaging in a scattering medium, using ultrasonic probing and speckle image differencing174US 5,212,667 AGeneral Electric Company · 1993