G01J 2001/1647
One signal maintained constant
Official title: {one signal maintained constant}
G01J2001/1647 (One signal maintained constant) appears on 5 US grants and 2 published applications in this corpus.
Search patents in G01J- Granted patents
- 5
- Published applications
- 2
- Assignees
- 5
- Inventors
- 8
- Latest grant
- 28 Jun 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Photoelectric detection circuit, photoelectric detection device and electronic device28 Jun 2022US 11,371,881 B2Beijing Boe Optoelectronics Technology Co., Ltd.
- Optical perspiration sensor using frustrated total internal reflection28 Jun 2016US 9,377,353 B2Intel Corporation
- Apparatus for monitoring hematocrit levels of blood31 Jan 1995US 5,385,539 AAdvanced Haemotechnologies
- Sensor for mixing ratio of gasoline and alcohol or the like25 Apr 1989US 4,824,244 ANgk Spark Plug Co., Ltd.
- Sensor for mixing ratio of gasoline and alcohol13 Sep 1988US 4,770,129 ANgk Spark Plug Co., Ltd.
Most cited
By later US patents
- Apparatus for monitoring hematocrit levels of blood149US 5,385,539 AAdvanced Haemotechnologies · 1995
- Sensor for mixing ratio of gasoline and alcohol35US 4,770,129 ANgk Spark Plug Co., Ltd. · 1988
- Sensor for mixing ratio of gasoline and alcohol or the like4US 4,824,244 ANgk Spark Plug Co., Ltd. · 1989