G01R 33/1223
Measuring permeability, i.e. permeameters
Official title: {Measuring permeability, i.e. permeameters (G01R33/14 takes precedence)}
G01R33/1223 (Measuring permeability, i.e. permeameters) appears on 100 US grants and 77 published applications in this corpus.
Search patents in G01R- Granted patents
- 100
- Published applications
- 77
- Assignees
- 80
- Inventors
- 258
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 2 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 1 |
| 2005 | 2 | 0 |
| 2006 | 0 | 0 |
| 2007 | 2 | 2 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 3 | 1 |
| 2011 | 1 | 6 |
| 2012 | 2 | 1 |
| 2013 | 2 | 4 |
| 2014 | 6 | 1 |
| 2015 | 0 | 2 |
| 2016 | 2 | 5 |
| 2017 | 3 | 3 |
| 2018 | 3 | 5 |
| 2019 | 5 | 4 |
| 2020 | 9 | 7 |
| 2021 | 3 | 3 |
| 2022 | 9 | 6 |
| 2023 | 6 | 7 |
| 2024 | 9 | 6 |
| 2025 | 8 | 4 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic coupling coil optimization method, device, computer equipment and storage medium21 Apr 2026US 12,609,239 B2
- Systems and methods for utility locating in a multi-utility environment9 Dec 2025US 12,493,133 B1Seescan, Inc.
- Method for detecting an attack by electromagnetic waves of a chip or a system-in-package based on the GMI effect2 Dec 2025US 12,488,214 B2Commissariat A L'energie Atomique Et Aux Energies
- Quantum sensor25 Nov 2025US 12,480,876 B2Endress + Hauser GmbH + Co. KG
- Measurement device and measurement method for measuring permeability and permittivity18 Nov 2025US 12,474,299 B2Tohoku University
- Permeability spectrum testing device and method for micron-sized sample based on near-field microwave probe3 Sep 2026US 2026/0259284 A1Lanzhou University
- Magnetic Permeability Measuring Method4 Jun 2026US 2026/0153575 A1Tohoku University
- Threat detection and discrimination using multiple frequency spectra19 Feb 2026US 2026/0049960 A1
- Personnel inspection with threat detection and discrimination11 Sep 2025US 2025/0285529 A1
- Magnetic Susceptibility Measurement Device and Magnetic Susceptibility Measurement Method14 Aug 2025US 2025/0258255 A1Tohoku University
Most cited
By later US patents
- Magnetometer having periodic winding structure and material property estimator75US 5,453,689 AMassachusetts Institute of Technology · 1995
- Apparatus and methods for obtaining increased sensitivity, selectivity and dynamic range in property measurement using magnetometers44US 5,629,621 AMassachusetts Institute of Technology · 1997
- Constant flux magneto resistive magnetic reluctance sensing apparatus33US 4,668,913 AInternational Business Machines Corporation · 1987
- Permeability responsive oscillator for detecting phase transformations at various cooling rates29US 4,105,971 A1978
- Wireless sensing system for non-invasive monitoring of attributes of contents in a container24US 7,814,786 B2The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 2010