G01N 27/825
By using magnetic attraction force
Official title: {by using magnetic attraction force (G01N27/84 takes precedence)}
G01N27/825 (By using magnetic attraction force) appears on 11 US grants and 11 published applications in this corpus.
Search patents in G01N- Granted patents
- 11
- Published applications
- 11
- Assignees
- 16
- Inventors
- 30
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 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 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 2 | 1 |
| 2018 | 0 | 2 |
| 2019 | 0 | 0 |
| 2020 | 1 | 2 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Localizing a tool in a tubular conduit1 Sep 2026US 12,723,506 B2Saudi Arabian Oil Company
- Defect measurement device, defect measurement method, and inspection probe21 Nov 2023US 11,821,870 B2Sumitomo Chemical Company, Limited
- Methods for testing non- or weakly ferromagnetic test objects21 Jan 2020US 10,539,532 B2Basell Polyolefine GmbH
- Sensor device for magnetically actuated particles12 Dec 2017US 9,841,421 B2Koninklijke Philips N. V.
- Magnetic permeability measurement of ferromagnetic wires23 May 2017US 9,658,297 B2The Boeing Company
- Method for the internal inspection of storage tanks21 May 2026US 2026/0140089 A1Petroleo Brasileiro S.A. - Petrbras
- Localizing a tool in a tubular conduit18 Dec 2025US 2025/0382871 A1Saudi Arabian Oil Company
- Defect measurement device, defect measurement method, and inspection probe8 Oct 2020US 2020/0319141 A1Sumitomo Chemical Company, Limited
- Method of and apparatus for inspecting a ferromagnetic object27 Aug 2020US 2020/0271549 A1Kal Tire
- Methods for testing non- or weakly ferromagnetic test objects19 Jul 2018US 2018/0202971 A1Basell Polyolefine GmbH
Most cited
By later US patents
- Sensor device for magnetically actuated particles16US 9,841,421 B2Koninklijke Philips N. V. · 2017
- Method and system for testing of individual gear teeth12US 4,020,678 A1977
- Subsurface examination of non-ferrous material for detecting corrosion by measuring magnetic traction10US 5,532,589 AThe United States of America as represented by the Secretary of the Navy · 1996
- Magnetic flexure system for determining superconductive properties of a sample8US 4,931,732 ACornell Research Foundation, Inc. · 1990
- Apparatus and method for determining the density of a metal plated porous foam6US 5,497,086 AInco Limited · 1996