G01B 7/34
Measuring arrangements characterised by the use of electric or magnetic techniques: for
Official title: for measuring roughness or irregularity of surfaces
G01B7/34 (Measuring arrangements characterised by the use of electric or magnetic techniques: for) appears on 316 US grants and 110 published applications in this corpus.
Search patents in G01B- Granted patents
- 316
- Published applications
- 110
- Assignees
- 214
- Inventors
- 619
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 7 | 0 |
| 1978 | 8 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 1 | 0 |
| 1984 | 6 | 0 |
| 1985 | 4 | 0 |
| 1986 | 7 | 0 |
| 1987 | 7 | 0 |
| 1988 | 8 | 0 |
| 1989 | 12 | 0 |
| 1990 | 7 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 6 | 0 |
| 1994 | 10 | 0 |
| 1995 | 9 | 0 |
| 1996 | 17 | 0 |
| 1997 | 6 | 0 |
| 1998 | 11 | 0 |
| 1999 | 19 | 0 |
| 2000 | 10 | 0 |
| 2001 | 14 | 4 |
| 2002 | 9 | 12 |
| 2003 | 14 | 4 |
| 2004 | 7 | 4 |
| 2005 | 7 | 4 |
| 2006 | 3 | 7 |
| 2007 | 5 | 4 |
| 2008 | 5 | 3 |
| 2009 | 2 | 1 |
| 2010 | 1 | 3 |
| 2011 | 2 | 1 |
| 2012 | 1 | 2 |
| 2013 | 1 | 6 |
| 2014 | 3 | 5 |
| 2015 | 3 | 1 |
| 2016 | 8 | 4 |
| 2017 | 3 | 5 |
| 2018 | 2 | 4 |
| 2019 | 5 | 9 |
| 2020 | 6 | 7 |
| 2021 | 9 | 9 |
| 2022 | 6 | 3 |
| 2023 | 2 | 1 |
| 2024 | 3 | 1 |
| 2025 | 1 | 4 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Contactless detection of vibrations in metal belts14 Jul 2026US 12,680,806 B2Primetals Technologies Germany GmbH
- Road surface type detection device7 Jul 2026US 12,673,645 B2Hitachi Astemo, Ltd.
- Autonomous inspection of a surface topology of an airfoil of a gas turbine engine20 Jan 2026US 12,529,551 B2Rtx Corporation
- Contactless capacitive measurement tool with improved throughput and accuracy7 Oct 2025US 12,435,964 B2Tokyo Electron Limited
- Surface finish stylus25 Jun 2024US 12,018,938 B2Renishaw PLC
- Sensing device17 Sep 2026US 2026/0276363 A1Carnegie Mellon University
- Method for modeling wafer shape, and method for manufacturing wafer26 Feb 2026US 2026/0057163 A1Sumco Corporation
- Autonomous inspection of a surface topology of an airfoil of a gas turbine engine4 Sep 2025US 2025/0277657 A1Rtx Corporation
- Road surface type detection device10 Jul 2025US 2025/0222909 A1Hitachi Astemo, Ltd.
- Contactless capacitive measurement tool with improved throughput and accuracy22 May 2025US 2025/0164230 A1Tokyo Electron Limited
Most cited
By later US patents
- In situ monitoring technique and apparatus for chemical/mechanical planarization endpoint detection220US 5,081,421 AAT&T Bell Laboratories · 1992
- Capacitive fingerprint sensor with adjustable gain177US 6,049,620 AVeridicom, Inc. · 2000
- Fingerprint sensor having spoof reduction features and related methods163US 5,953,441 AHarris Corporation · 1999
- Capacitive fingerprint acquisition sensor149US 6,016,355 AVeridicom, Inc. · 2000
- Multi-dimensional capacitive transducer146US 5,869,751 AHysitron, Inc. · 1999