G01N 2201/0686
Cold filter
Official title: Cold filter; IR filter
G01N2201/0686 (Cold filter) appears on 46 US grants and 54 published applications in this corpus.
Search patents in G01N- Granted patents
- 46
- Published applications
- 54
- Assignees
- 49
- Inventors
- 137
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 4 |
| 2016 | 2 | 2 |
| 2017 | 3 | 6 |
| 2018 | 4 | 3 |
| 2019 | 7 | 5 |
| 2020 | 3 | 6 |
| 2021 | 3 | 4 |
| 2022 | 4 | 4 |
| 2023 | 5 | 5 |
| 2024 | 7 | 4 |
| 2025 | 4 | 3 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Spectroscopic detection method for detecting lycopene content in agricultural product22 Sep 2026US 12,742,762 B2Zhejiang Kepler Technology Co., Ltd.
- Imaging device, inspection device, and imaging method29 Jul 2025US 12,372,461 B2Kabushiki Kaisha N-Tech
- Outdoor photoluminescence imaging of photovoltaic modules18 Mar 2025US 12,255,582 B2NewSouth Innovations Pty Limited
- Optical device11 Mar 2025US 12,247,915 B2Asahi Kasei Microdevices Corporation
- Gas detection using differential path length measurement18 Feb 2025US 12,228,502 B2Analog Devices, Inc.
- Polymer sequencing apparatus, methods of fabrication and use11 Jun 2026US 2026/0160695 A1Armonica Technologies, Inc.
- Polymer sequencing apparatus, methods of fabrication and use14 May 2026US 2026/0133130 A1Armonica Technologies, Inc.
- Moisture content measurement system based on multi-infrared detection reflection bands7 May 2026US 2026/0126378 A1Zhejiang University
- Polymer sequencing apparatus, methods of fabrication and use26 Mar 2026US 2026/0084149 A1Armonica Technologies, Inc.
- Gas correlation filter wheel and gas analyzer5 Mar 2026US 2026/0063542 A1Fuji Electric Co., Ltd.
Most cited
By later US patents
- Color line scan video camera for inspection system36US 5,315,384 ASimco/Ramic Corporation · 1994
- Lighting systems and methods of using lighting systems for in vitro potency assay for photofrin18US 9,371,555 B2Concordia Laboratories Inc. · 2016
- Device and system for optically analyzing food products5US 10,458,965 B1P & P Optica Inc. · 2019
- Identifying targeted gaseous chemical compound3US 10,168,276 B1Itron, Inc. · 2019
- Quantum imaging with undetected photons3US 9,557,262 B2The Austrian Academy of Sciences · 2017