G02B 23/2438
Zoom objectives
Official title: {Zoom objectives}
G02B23/2438 (Zoom objectives) appears on 136 US grants and 143 published applications in this corpus.
Search patents in G02B- Granted patents
- 136
- Published applications
- 143
- Assignees
- 49
- Inventors
- 230
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 2 |
| 2002 | 4 | 1 |
| 2003 | 3 | 2 |
| 2004 | 1 | 1 |
| 2005 | 2 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 5 |
| 2008 | 1 | 2 |
| 2009 | 2 | 6 |
| 2010 | 2 | 5 |
| 2011 | 7 | 5 |
| 2012 | 3 | 2 |
| 2013 | 3 | 9 |
| 2014 | 4 | 5 |
| 2015 | 6 | 7 |
| 2016 | 5 | 16 |
| 2017 | 9 | 12 |
| 2018 | 12 | 15 |
| 2019 | 12 | 7 |
| 2020 | 9 | 13 |
| 2021 | 10 | 8 |
| 2022 | 8 | 6 |
| 2023 | 7 | 3 |
| 2024 | 3 | 3 |
| 2025 | 4 | 5 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Endoscope system, endoscope control method, and program with hysteresis compensation for autofovus control30 Dec 2025US 12,507,868 B2Sony Group Corporation
- Optical unit, image pickup apparatus, endoscope and driving method of optical unit9 Dec 2025US 12,493,176 B2Olympus Corporation
- Endoscope system and method of operating the same29 Apr 2025US 12,287,475 B2FUJIFILM Corporation
- System for use with component of power generation apparatus15 Apr 2025US 12,276,619 B2ROLLS-ROYCE plc
- Observation device and method of operating an observation device27 Aug 2024US 12,070,185 B2KARL STORZ GmbH&Co.KG
- Zoom lens and imaging apparatus6 Aug 2026US 2026/0227609 A1Sony Group Corporation
- Medical imaging system, control method, and program10 Apr 2025US 2025/0113983 A1Sony Group Corporation
- Optical unit and endoscope10 Apr 2025US 2025/0116854 A1Olympus Medical Systems Corp.
- Endoscope imaging device and endoscope13 Mar 2025US 2025/0082185 A1FUJIFILM Corporation
- Lens position control device and endoscope apparatus27 Feb 2025US 2025/0064305 A1FUJIFILM Corporation
Most cited
By later US patents
- Objective lens for endoscope87US 6,353,504 B1Fuji Photo Optical Co., Ltd. · 2002
- Objective lens for variable viewing depth endoscope80US 6,327,101 B1Fuji Photo Optical Co., Ltd. · 2001
- Endoscope with movable imaging unit for zooming or focusing75US 6,117,071 AAsahi Kogaku Kogyo Kabushiki Kaisha · 2000
- Vari-focal image pickup optical system for endoscopes73US 5,933,282 AOlympus Optical Co., Ltd. · 1999
- Objective optical system for an endoscope71US 7,466,490 B2Olympus Medical Systems Corp. · 2008