G01B 7/28
Measuring arrangements characterised by the use of electric or magnetic techniques: for
Official title: for measuring contours or curvatures
G01B7/28 (Measuring arrangements characterised by the use of electric or magnetic techniques: for) appears on 609 US grants and 249 published applications in this corpus.
Search patents in G01B- Granted patents
- 609
- Published applications
- 249
- Assignees
- 409
- Inventors
- 1,217
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 18 | 0 |
| 1977 | 11 | 0 |
| 1978 | 20 | 0 |
| 1979 | 11 | 0 |
| 1980 | 17 | 0 |
| 1981 | 16 | 0 |
| 1982 | 20 | 0 |
| 1983 | 15 | 0 |
| 1984 | 20 | 0 |
| 1985 | 15 | 0 |
| 1986 | 18 | 0 |
| 1987 | 17 | 0 |
| 1988 | 18 | 0 |
| 1989 | 32 | 0 |
| 1990 | 19 | 0 |
| 1991 | 18 | 0 |
| 1992 | 26 | 0 |
| 1993 | 11 | 0 |
| 1994 | 8 | 0 |
| 1995 | 9 | 0 |
| 1996 | 14 | 0 |
| 1997 | 7 | 0 |
| 1998 | 6 | 0 |
| 1999 | 8 | 0 |
| 2000 | 6 | 0 |
| 2001 | 8 | 1 |
| 2002 | 10 | 6 |
| 2003 | 6 | 7 |
| 2004 | 5 | 7 |
| 2005 | 10 | 7 |
| 2006 | 6 | 7 |
| 2007 | 3 | 6 |
| 2008 | 4 | 6 |
| 2009 | 3 | 3 |
| 2010 | 5 | 5 |
| 2011 | 6 | 13 |
| 2012 | 5 | 12 |
| 2013 | 5 | 3 |
| 2014 | 9 | 9 |
| 2015 | 7 | 7 |
| 2016 | 10 | 9 |
| 2017 | 11 | 13 |
| 2018 | 9 | 13 |
| 2019 | 19 | 22 |
| 2020 | 19 | 25 |
| 2021 | 14 | 21 |
| 2022 | 15 | 8 |
| 2023 | 18 | 12 |
| 2024 | 11 | 8 |
| 2025 | 6 | 15 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01B 7/287Using a plurality of fixed, simultaneously operating transducers149
- G01B 7/282For measuring roundness74
- G01B 7/281For measuring contour or curvature along an axis67
- G01B 7/283Of gears49
- G01B 7/293For measuring radius of curvature27
- G01B 7/284Of screw-threads15
- G01B 7/285Of propellers or turbine blades13
- G01B 7/286Spherometers2
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Most cited
By later US patents
- Fingerprint sensing device and recognition system having predetermined electrode activation397US 5,325,442 AU. S. Philips Corporation · 1994
- Capacitive fingerprint sensor327US 4,353,056 ASiemens Aktiengesellschaft · 1982
- Surface shape sensor, identification device using this sensor, and protected system using this device202US 5,559,504 AKabushiki Kaisha Toshiba · 1996
- Method and apparatus for measuring direction178US 3,944,798 AEaton-Leonard Corporation · 1976
- Device for measuring the shape of a three-dimensional object166US 4,703,443 AKabushiki Kaisha Toshiba · 1987