G01R 23/18
With provision for recording frequency spectrum
Official title: with provision for recording frequency spectrum
G01R23/18 (With provision for recording frequency spectrum) appears on 90 US grants and 82 published applications in this corpus.
Search patents in G01R- Granted patents
- 90
- Published applications
- 82
- Assignees
- 64
- Inventors
- 244
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 5 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 2 |
| 2007 | 1 | 1 |
| 2008 | 2 | 4 |
| 2009 | 0 | 2 |
| 2010 | 0 | 2 |
| 2011 | 2 | 4 |
| 2012 | 2 | 3 |
| 2013 | 5 | 5 |
| 2014 | 4 | 3 |
| 2015 | 2 | 3 |
| 2016 | 4 | 0 |
| 2017 | 4 | 3 |
| 2018 | 4 | 2 |
| 2019 | 1 | 6 |
| 2020 | 7 | 6 |
| 2021 | 8 | 5 |
| 2022 | 1 | 6 |
| 2023 | 0 | 7 |
| 2024 | 6 | 8 |
| 2025 | 8 | 3 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Automatic determination of spectrum and spectrogram attributes in a test and measurement instrument16 Jun 2026US 12,656,373 B2Tektronix, Inc.
- Systems and methods to monitor seats for diagnostics, prognostics and degradation9 Sep 2025US 12,409,759 B2Magna Seating Inc.
- Providing a frequency of an electrical quantity in an electrical power system29 Jul 2025US 12,372,560 B2Hitachi Energy Ltd
- Method and system for monitoring operation status of an electric motor in real time15 Jul 2025US 12,360,144 B2Schneider Toshiba Inverter Europe SAS
- Removing test equipment intermodulation interference and noise from power spectral density measurements1 Jul 2025US 12,345,748 B2LitePoint Corporation
- Detecting rf emissions and classifying rf sources using spectrum transformer models2 Jul 2026US 2026/0187193 A1Armada Systems Inc.
- Method, System and Computer Program for Detecting Faults in Induction Motors18 Jun 2026US 2026/0169072 A1Schneider Toshiba Inverter Europe SAS
- Computer implemented method and system for anomaly detection in industrial drivetrain5 Mar 2026US 2026/0063719 A1Insens SRL
- Analysis and measurement of signals in a multi-channel antenna receiver with multi-channel analog-digital converters (adcs)2 Oct 2025US 2025/0310006 A1Viavi Solutions Inc.
- Representative frequencies determination for estimating emission power from antenna array3 Jul 2025US 2025/0216428 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Monitoring system and method implementing failure time spectrum scan118US 7,003,414 B1Agilent Technologies, Inc. · 2006
- Method and device for determining a frequency mask for a frequency spectrum115US 8,442,789 B2Rohde & Schwarz GmbH & Co.KG · 2013
- Spectrum display device for audio signals49US 4,665,494 AVictor Company of Japan, Ltd. · 1987
- Apparatus for spectrum analysis of an electrical signal34US 4,257,104 AHewlett-Packard Company · 1981
- Spectrum analyzer having enterable offsets and automatic display zoom30US 4,244,024 AHewlett-Packard Company · 1981