G01N 21/23
Bi-refringence
G01N21/23 (Bi-refringence) appears on 317 US grants and 331 published applications in this corpus.
Search patents in G01N- Granted patents
- 317
- Published applications
- 331
- Assignees
- 258
- Inventors
- 751
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 2 | 7 |
| 2003 | 6 | 14 |
| 2004 | 7 | 13 |
| 2005 | 6 | 15 |
| 2006 | 10 | 14 |
| 2007 | 17 | 17 |
| 2008 | 12 | 15 |
| 2009 | 11 | 15 |
| 2010 | 9 | 21 |
| 2011 | 15 | 14 |
| 2012 | 12 | 16 |
| 2013 | 13 | 16 |
| 2014 | 15 | 14 |
| 2015 | 12 | 17 |
| 2016 | 12 | 16 |
| 2017 | 14 | 14 |
| 2018 | 19 | 19 |
| 2019 | 10 | 8 |
| 2020 | 15 | 9 |
| 2021 | 8 | 12 |
| 2022 | 7 | 13 |
| 2023 | 11 | 11 |
| 2024 | 8 | 9 |
| 2025 | 11 | 5 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and method for analyzing a bodily sample11 Aug 2026US 12,702,978 B2S. D. Sight Diagnostics Ltd.
- Probe and method for detecting membrane-associated molecules in living cells5 May 2026US 12,618,828 B2
- Hybrid systems and methods for characterizing stress in chemically strengthened transparent substrates21 Apr 2026US 12,607,560 B2Corning Incorporated
- Apparatus for inspecting display panel and method for inspecting display panel24 Feb 2026US 12,560,483 B2Samsung Display Co., Ltd.
- System and method for analyte detection17 Feb 2026US 12,553,822 B2Nanohmics, Inc.
- Terahertz wave spectroscopic measurement apparatus and terahertz wave spectroscopic measurement method13 Aug 2026US 2026/0235508 A1Hamamatsu Photonics K.K.
- Feature Prediction Using Nondestructive Workpiece Imaging25 Jun 2026US 2026/0177500 A1Wolfspeed, Inc.
- System and method for analyte detection4 Jun 2026US 2026/0153432 A1Nanohmics, Inc.
- Apparatus for inspecting display panel and method for inspecting display panel21 May 2026US 2026/0139994 A1Samsung Display Co., Ltd.
- Ellipsometric Imaging For Optical Defect Inspection23 Apr 2026US 2026/0110626 A1
Most cited
By later US patents
- Systems and methods for measuring a profile characteristic of a glass sample187US 8,854,623 B2Corning Incorporated · 2014
- Multi-optical detection system123US 5,427,915 ABiocircuits Corporation · 1995
- Tissue imaging system123US 7,460,248 B2Carestream Health, Inc. · 2008
- Multi-optical detection system90US 5,268,305 ABiocircuits Corporation · 1993
- Low-loss polarized light diversion90US 8,059,274 B2The Spectranetics Corporation · 2011