G01N 2021/9513
Liquid crystal panels
Official title: {Liquid crystal panels}
G01N2021/9513 (Liquid crystal panels) appears on 284 US grants and 338 published applications in this corpus.
Search patents in G01N- Granted patents
- 284
- Published applications
- 338
- Assignees
- 166
- Inventors
- 846
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 1 |
| 2002 | 2 | 3 |
| 2003 | 4 | 9 |
| 2004 | 5 | 14 |
| 2005 | 8 | 15 |
| 2006 | 11 | 20 |
| 2007 | 11 | 15 |
| 2008 | 13 | 14 |
| 2009 | 7 | 21 |
| 2010 | 11 | 19 |
| 2011 | 14 | 14 |
| 2012 | 19 | 18 |
| 2013 | 8 | 9 |
| 2014 | 10 | 16 |
| 2015 | 12 | 20 |
| 2016 | 11 | 18 |
| 2017 | 17 | 6 |
| 2018 | 13 | 14 |
| 2019 | 10 | 14 |
| 2020 | 13 | 13 |
| 2021 | 11 | 15 |
| 2022 | 9 | 10 |
| 2023 | 8 | 13 |
| 2024 | 11 | 18 |
| 2025 | 16 | 3 |
| 2026 | 8 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Screen defect and contamination detection for mobile devices18 Aug 2026US 12,711,599 B2QUALCOMM Incorporated
- High-speed automatic film-foreign substance detection apparatus30 Jun 2026US 12,669,445 B2
- Defect inspection device and defect inspection method21 Apr 2026US 12,607,573 B2Samsung Electronics Co., Ltd.
- Apparatus for inspecting display panel and method for inspecting display panel24 Feb 2026US 12,560,483 B2Samsung Display Co., Ltd.
- Systems and methods for automatically grading pre-owned electronic devices24 Feb 2026US 12,561,789 B2Assurant, Inc.
- Systems and methods for automatically grading pre-owned electronic devices23 Jul 2026US 2026/0212481 A1Assurant, Inc.
- Inspection equipment and inspection method11 Jun 2026US 2026/0160699 A1Samsung Display Co., Ltd.
- Focusing control method, control apparatus and control system, and storage medium11 Jun 2026US 2026/0164126 A1Boe Technology Group Co., Ltd.
- Apparatus for inspecting display panel and method for inspecting display panel21 May 2026US 2026/0139994 A1Samsung Display Co., Ltd.
- Display panel inspection method and inspection system30 Apr 2026US 2026/0118266 A1Samsung Display Co., Ltd.
Most cited
By later US patents
- Surface inspection system using laser line illumination with two dimensional imaging125US 7,525,649 B1KLA-Tencor Technologies Corporation · 2009
- Method and apparatus for automatic optical inspection93US 5,333,052 AOrbotech Ltd. · 1994
- Method of testing active matrix liquid crystal display substrates55US 5,432,461 APhoton Dynamics, Inc. · 1995
- Method and apparatus for low angle, high resolution surface inspection51US 5,127,726 AEastman Kodak Company · 1992
- Testing method for imaging defects in a liquid crystal display substrate49US 5,504,438 APhoton Dynamics, Inc. · 1996