G02B 6/3538
Based on displacement or deformation of a liquid
Official title: {based on displacement or deformation of a liquid (controlling the intensity of light by displacement or deformation of a fluid in general G02B26/004; fluid-filled lens of variable focal length G02B3/14)}
G02B6/3538 (Based on displacement or deformation of a liquid) appears on 181 US grants and 156 published applications in this corpus.
Search patents in G02B- Granted patents
- 181
- Published applications
- 156
- Assignees
- 91
- Inventors
- 359
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 10 | 0 |
| 2002 | 18 | 27 |
| 2003 | 15 | 25 |
| 2004 | 22 | 28 |
| 2005 | 26 | 16 |
| 2006 | 11 | 9 |
| 2007 | 11 | 7 |
| 2008 | 5 | 5 |
| 2009 | 3 | 0 |
| 2010 | 2 | 1 |
| 2011 | 1 | 2 |
| 2012 | 2 | 2 |
| 2013 | 2 | 3 |
| 2014 | 2 | 2 |
| 2015 | 3 | 3 |
| 2016 | 2 | 0 |
| 2017 | 1 | 2 |
| 2018 | 1 | 3 |
| 2019 | 1 | 1 |
| 2020 | 3 | 4 |
| 2021 | 3 | 2 |
| 2022 | 3 | 5 |
| 2023 | 2 | 3 |
| 2024 | 0 | 1 |
| 2025 | 1 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Porous fluid sensor13 Aug 2026US 2026/0235488 A1Solventum Intellectual Properties Company
- Optical apparatus, modules and devices13 Aug 2026US 2026/0235871 A1Nokia Technologies Oy
- Optical device for polarization dependent loss compensation9 Apr 2026US 2026/0099006 A1
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Most cited
By later US patents
- Microfluidic control using dielectric pumping157US 6,949,176 B2Lightwave Microsystems Corporation · 2005
- Optical switch using bubbles146US 4,988,157 ABell Communications Research, Inc. · 1991
- Thermal optical switches for light145US 6,212,308 B1Agilent Technologies, Inc. · 2001
- Total internal reflection optical switches employing thermal activation137US 5,699,462 AHewlett-Packard Company · 1997
- Optical device or switch for controlling radiation conducted in an optical waveguide134US 4,505,539 ASiemens Aktiengesellschaft · 1985