G01F 23/292
Light
Official title: Light {, e.g. infrared or ultraviolet}
G01F23/292 (Light) appears on 1,144 US grants and 1,060 published applications in this corpus.
Search patents in G01F- Granted patents
- 1,144
- Published applications
- 1,060
- Assignees
- 824
- Inventors
- 2,794
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 9 | 0 |
| 1978 | 11 | 0 |
| 1979 | 8 | 0 |
| 1980 | 15 | 0 |
| 1981 | 10 | 0 |
| 1982 | 13 | 0 |
| 1983 | 7 | 0 |
| 1984 | 12 | 0 |
| 1985 | 3 | 0 |
| 1986 | 11 | 0 |
| 1987 | 22 | 0 |
| 1988 | 16 | 0 |
| 1989 | 26 | 0 |
| 1990 | 21 | 0 |
| 1991 | 25 | 0 |
| 1992 | 10 | 0 |
| 1993 | 19 | 0 |
| 1994 | 12 | 0 |
| 1995 | 11 | 0 |
| 1996 | 13 | 0 |
| 1997 | 14 | 0 |
| 1998 | 24 | 0 |
| 1999 | 13 | 0 |
| 2000 | 21 | 0 |
| 2001 | 19 | 3 |
| 2002 | 17 | 13 |
| 2003 | 19 | 26 |
| 2004 | 17 | 20 |
| 2005 | 13 | 23 |
| 2006 | 15 | 14 |
| 2007 | 16 | 18 |
| 2008 | 10 | 26 |
| 2009 | 14 | 28 |
| 2010 | 22 | 41 |
| 2011 | 22 | 31 |
| 2012 | 19 | 31 |
| 2013 | 17 | 26 |
| 2014 | 25 | 26 |
| 2015 | 39 | 52 |
| 2016 | 31 | 45 |
| 2017 | 29 | 41 |
| 2018 | 41 | 71 |
| 2019 | 64 | 66 |
| 2020 | 53 | 72 |
| 2021 | 46 | 59 |
| 2022 | 42 | 60 |
| 2023 | 56 | 83 |
| 2024 | 49 | 81 |
| 2025 | 52 | 55 |
| 2026 | 46 | 49 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Injection device and a reusable part therefor6 Oct 2026US 12,752,059 B2Boehringer Ingelheim International GmbH
- System and method of detecting fluid levels in tanks6 Oct 2026US 12,754,057 B2Plainsight Technologies Inc.
- Apparatus for accumulating a fluid15 Sep 2026US 12,736,389 B2Medela, Inc.
- Liquid sensing arrangement for beverage machine8 Sep 2026US 12,727,710 B2Keurig Green Mountain, Inc.
- Sensor system for dry powder electrode formation and methods of using the same8 Sep 2026US 12,728,565 B2Matthews International Corporation
- Signal processing for multi-sensor distance calculation and level measurement in a tank8 Oct 2026US 2026/0309536 A1Rosemount Tank Radar AB
- Storage container1 Oct 2026US 2026/0298691 A1Kathema GmbH
- Hydration sensing water bottle with consumption tracking and multi-sensor cap24 Sep 2026US 2026/0285558 A1Generosity Water, Inc.
- Substrate unit and image forming apparatus24 Sep 2026US 2026/0288034 A1Canon Kabushiki Kaisha
- Device for Monitoring an Apparatus for Induction Heating of a Metal Material, Method for Automatic Loading and Control System17 Sep 2026US 2026/0276308 A1Otto Junker GmbH
Most cited
By later US patents
- Inductance-based dose measurement in syringes551US 6,068,615 AHealth Hero Network, Inc. · 2000
- Optical dose measurements in syringes480US 6,113,578 AHealth Hero Network, Inc. · 2000
- Apparatus for optically determining and electronically recording injection doses in syringes436US 5,792,117 ARaya Systems, Inc. · 1998
- Apparatus for electrically determining injection doses in syringes432US 5,569,212 ARaya Systems, Inc. · 1996
- Capacitance-based dose measurements in syringes416US 6,110,148 AHealth Hero Network, Inc. · 2000