G02B 23/2492
Arrangements for use in a hostile environment
Official title: {Arrangements for use in a hostile environment, e.g. a very hot, cold or radioactive environment}
G02B23/2492 (Arrangements for use in a hostile environment) appears on 170 US grants and 173 published applications in this corpus.
Search patents in G02B- Granted patents
- 170
- Published applications
- 173
- Assignees
- 112
- Inventors
- 453
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 3 |
| 2007 | 0 | 5 |
| 2008 | 3 | 4 |
| 2009 | 2 | 6 |
| 2010 | 2 | 4 |
| 2011 | 1 | 3 |
| 2012 | 8 | 5 |
| 2013 | 5 | 13 |
| 2014 | 3 | 11 |
| 2015 | 9 | 13 |
| 2016 | 8 | 11 |
| 2017 | 9 | 15 |
| 2018 | 16 | 15 |
| 2019 | 10 | 11 |
| 2020 | 15 | 6 |
| 2021 | 7 | 13 |
| 2022 | 8 | 8 |
| 2023 | 6 | 8 |
| 2024 | 10 | 7 |
| 2025 | 5 | 5 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Boroscope guide fixture26 May 2026US 12,638,670 B2Rtx Corporation
- Self-cleaning optical probe5 May 2026US 12,618,769 B2Inov8 Systems Limited
- Assembly for sensory and visual inspection of a closed storage tank7 Apr 2026US 12,596,079 B2Tank-Eye Ie B.V.
- High-temperature endoscope preventing impurities of ingot growth apparatus from being deposited24 Mar 2026US 12,585,109 B2Hanwha Solutions Corporation
- Apparatus for imaging an electric power train11 Jun 2026US 2026/0160181 A1GE Aviation Systems LLC
- Local gas path driven passive purge for optical probe23 Apr 2026US 2026/0110623 A1Rtx Corporation
- Optical system, imaging device, and endoscope system26 Mar 2026US 2026/0083307 A1Sony Group Corporation
- Inspection assembly, system, and method for a gas turbine engine20 Nov 2025US 2025/0354894 A1ROLLS-ROYCE plc
- Tool stabilization mechanism and related methods28 Aug 2025US 2025/0271657 A1General Electric Company
Most cited
By later US patents
- Semiconductor process chamber vision and monitoring system555US 8,726,837 B2APPLIED Materials.Inc. · 2014
- Electronic endoscope194US 6,796,939 B1Olympus Corporation · 2004
- Mounting system that maintains stability of optics as temperature changes92US 9,491,863 B2Align Technology, Inc. · 2016
- Endoscope capable of being autoclaved71US 6,547,721 B1Olympus Optical Co., Ltd. · 2003
- Endoscope apparatus70US 8,194,380 B2Olympus Corporation · 2012