G01R 13/40
Arrangements for displaying electric variables or waveforms: using modulation of a light
Official title: using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect {(visual indication of correct tuning H03J3/14)}
G01R13/40 (Arrangements for displaying electric variables or waveforms: using modulation of a light) appears on 336 US grants and 35 published applications in this corpus.
Search patents in G01R- Granted patents
- 336
- Published applications
- 35
- Assignees
- 164
- Inventors
- 481
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 14 | 0 |
| 1978 | 20 | 0 |
| 1979 | 16 | 0 |
| 1980 | 24 | 0 |
| 1981 | 29 | 0 |
| 1982 | 16 | 0 |
| 1983 | 17 | 0 |
| 1984 | 9 | 0 |
| 1985 | 10 | 0 |
| 1986 | 8 | 0 |
| 1987 | 17 | 0 |
| 1988 | 12 | 0 |
| 1989 | 14 | 0 |
| 1990 | 7 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 3 | 0 |
| 1997 | 11 | 0 |
| 1998 | 12 | 0 |
| 1999 | 5 | 0 |
| 2000 | 11 | 0 |
| 2001 | 10 | 1 |
| 2002 | 2 | 4 |
| 2003 | 3 | 0 |
| 2004 | 3 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 3 |
| 2009 | 2 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 2 | 1 |
| 2017 | 1 | 2 |
| 2018 | 1 | 1 |
| 2019 | 3 | 3 |
| 2020 | 0 | 2 |
| 2021 | 4 | 1 |
| 2022 | 1 | 3 |
| 2023 | 2 | 2 |
| 2024 | 2 | 2 |
| 2025 | 3 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Display device and method of predicting deterioration of display panel17 Feb 2026US 12,555,524 B2Samsung Display Co., Ltd.
- Inspection device7 Oct 2025US 12,439,607 B2Samsung Electronics Co., Ltd.
- Multimeter with a meter probe module and phasing probe module capable of wireless communication and proximity measurements29 Jul 2025US 12,372,554 B2STB Electrical Test Equipment, Inc.
- Method, system and probe for measuring and visualizing values of an electromagnetic parameter of a PCB29 Jul 2025US 12,372,566 B2Rohde & Schwarz GmbH & Co.KG
- Multimeter with a meter probe module and phasing probe module capable of wireless communication and proximity measurements2 Jul 2024US 12,025,639 B2STB Electrical Test Equipment, Inc.
- Methods and systems for detection and notification of power outages and power quality28 May 2026US 2026/0149275 A1Whisker Labs, Inc.
- Multimeter with a meter probe module and phasing probe module capable of wirless communication and proximity measurements6 Nov 2025US 2025/0341546 A1STB Electrical Test Equipment, Inc.
- Display device and method of predicting deterioration of display panel18 Sep 2025US 2025/0292730 A1Samsung Display Co., Ltd.
- Multimeter with a meter probe module and phasing probe module capable of wireless communication and proximity measurements26 Sep 2024US 2024/0319231 A1STB Electrical Test Equipment, Inc.
- Inspection device20 Jun 2024US 2024/0201104 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Single-compartment, self-erasing, solution-phase electrochromic devices, solutions for use therein, and uses thereof555US 4,902,108 AGentex Corporation · 1990
- Variable reflectance motor vehicle mirror270US 5,128,799 AGentex Corporation · 1992
- Variable color digital display for emphasizing position of decimal point199US 5,003,298 A1991
- Variable color display system185US 6,018,237 ATexas Digital Systems, Inc. · 2000
- Color-emitting DC level indicator163US 4,388,589 A1983