G01R 13/405
Using a plurality of active, i.e. light emitting
Official title: {using a plurality of active, i.e. light emitting, e.g. electro-luminescent elements, i.e. bar graphs}
G01R13/405 (Using a plurality of active, i.e. light emitting) appears on 143 US grants and 10 published applications in this corpus.
Search patents in G01R- Granted patents
- 143
- Published applications
- 10
- Assignees
- 77
- Inventors
- 198
- Latest grant
- 19 Jan 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 10 | 0 |
| 1978 | 12 | 0 |
| 1979 | 9 | 0 |
| 1980 | 15 | 0 |
| 1981 | 12 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 1 |
| 2002 | 1 | 4 |
| 2003 | 3 | 0 |
| 2004 | 2 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 2 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Sensor unit19 Jan 2021US 10,895,478 B2Keyence Corporation
- Programmable audio level indicator10 Sep 2019US 10,410,482 B2Allen & Heath Limited
- Configurable colored indicator on computing device31 Oct 2017US 9,805,562 B1Google Inc.
- Configurable colored indicator on computing device3 May 2016US 9,330,542 B1Google Inc.
- Liquid crystal display1 Sep 2015US 9,122,117 B2Samsung Display Co., Ltd.
- Sensor Unit28 Mar 2019US 2019/0097629 A1Keyence Corporation
- Pprogrammable audio level indicator28 Feb 2019US 2019/0066456 A1Allen & Heath Limited
- Liquid crystal display18 Sep 2014US 2014/0267967 A1Samsung Display Co., Ltd.
- Display device10 Mar 2011US 2011/0057962 A1VEGA Grieshaber KG
- Instrument for testing an electrical circuit30 Jul 2009US 2009/0189597 A1Fluke Corporation
Most cited
By later US patents
- 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
- Display device with variable color background area161US 5,963,185 ATexas Digital Systems, Inc. · 1999
- Multicolor logic device159US 5,194,854 A1993
- Variable color digital multimeter140US 4,794,383 A1988