G01F 23/284
Electromagnetic waves
G01F23/284 (Electromagnetic waves) appears on 2,485 US grants and 2,428 published applications in this corpus.
Search patents in G01F- Granted patents
- 2,485
- Published applications
- 2,428
- Assignees
- 1,173
- Inventors
- 4,482
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 15 | 0 |
| 1978 | 12 | 0 |
| 1979 | 13 | 0 |
| 1980 | 21 | 0 |
| 1981 | 12 | 0 |
| 1982 | 17 | 0 |
| 1983 | 14 | 0 |
| 1984 | 18 | 0 |
| 1985 | 12 | 0 |
| 1986 | 15 | 0 |
| 1987 | 31 | 0 |
| 1988 | 24 | 0 |
| 1989 | 32 | 0 |
| 1990 | 23 | 0 |
| 1991 | 30 | 0 |
| 1992 | 16 | 0 |
| 1993 | 25 | 0 |
| 1994 | 21 | 0 |
| 1995 | 21 | 0 |
| 1996 | 27 | 0 |
| 1997 | 34 | 0 |
| 1998 | 47 | 0 |
| 1999 | 31 | 0 |
| 2000 | 43 | 0 |
| 2001 | 41 | 9 |
| 2002 | 40 | 51 |
| 2003 | 54 | 52 |
| 2004 | 51 | 65 |
| 2005 | 48 | 62 |
| 2006 | 46 | 48 |
| 2007 | 39 | 64 |
| 2008 | 42 | 71 |
| 2009 | 46 | 74 |
| 2010 | 57 | 91 |
| 2011 | 60 | 69 |
| 2012 | 45 | 76 |
| 2013 | 51 | 77 |
| 2014 | 74 | 94 |
| 2015 | 102 | 123 |
| 2016 | 84 | 132 |
| 2017 | 86 | 120 |
| 2018 | 98 | 156 |
| 2019 | 149 | 133 |
| 2020 | 128 | 131 |
| 2021 | 96 | 111 |
| 2022 | 81 | 126 |
| 2023 | 99 | 144 |
| 2024 | 111 | 149 |
| 2025 | 108 | 118 |
| 2026 | 86 | 82 |
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
- Modular field device6 Oct 2026US 12,754,056 B2Endress + Hauser GmbH + Co. KG
- System and method of detecting fluid levels in tanks6 Oct 2026US 12,754,057 B2Plainsight Technologies Inc.
- Method for noise diagnosis, method for signal control, diagnosis device and radiomatic level measuring device29 Sep 2026US 12,747,978 B2VEGA Grieshaber KG
- Distance sensor module29 Sep 2026US 12,748,178 B2Hosiden Corporation
- Measuring assembly of a field device on a container8 Oct 2026US 2026/0309534 A1VEGA Grieshaber KG
- Method for determining the inner diameter of a surge pipe using a fill level measuring device8 Oct 2026US 2026/0309535 A1Endress + Hauser GmbH + Co. KG
- Signal processing for multi-sensor distance calculation and level measurement in a tank8 Oct 2026US 2026/0309536 A1Rosemount Tank Radar AB
- Smart manhole cover with radar level meter1 Oct 2026US 2026/0297884 A1Bvk Teknoloji Anonim Sirketi
- Flow and level monitor for fluid systems1 Oct 2026US 2026/0298679 A1Hydro Radar, LLC
Most cited
By later US patents
- Reflection free launcher for electromagnetic guide wire602US 7,345,623 B2McEwan Technologies, LLC · 2008
- 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