F01D 21/003
Arrangements for testing or measuring
Official title: {Arrangements for testing or measuring (for measuring vibrations G01H)}
F01D21/003 (Arrangements for testing or measuring) appears on 1,848 US grants and 2,210 published applications in this corpus.
Search patents in F01D- Granted patents
- 1,848
- Published applications
- 2,210
- Assignees
- 342
- Inventors
- 4,230
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 3 |
| 2002 | 12 | 9 |
| 2003 | 15 | 16 |
| 2004 | 10 | 15 |
| 2005 | 17 | 27 |
| 2006 | 11 | 26 |
| 2007 | 17 | 43 |
| 2008 | 23 | 37 |
| 2009 | 33 | 38 |
| 2010 | 28 | 46 |
| 2011 | 30 | 44 |
| 2012 | 36 | 68 |
| 2013 | 54 | 67 |
| 2014 | 55 | 73 |
| 2015 | 55 | 129 |
| 2016 | 74 | 167 |
| 2017 | 105 | 151 |
| 2018 | 143 | 216 |
| 2019 | 161 | 191 |
| 2020 | 163 | 158 |
| 2021 | 132 | 113 |
| 2022 | 131 | 127 |
| 2023 | 136 | 105 |
| 2024 | 130 | 114 |
| 2025 | 115 | 128 |
| 2026 | 73 | 99 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Turbine engine condition detection1 Oct 2026US 2026/0298105 A1General Electric Company
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Most cited
By later US patents
- Fiber optic linked flame sensor206US 5,828,797 AMeggitt Avionics, Inc. · 1998
- System and method for providing gas turbine engine output torque sensor validation and sensor backup using a speed sensor193US 8,352,149 B2Honeywell International Inc. · 2013
- Neural network state diagnostic system for equipment166US 5,333,240 AHitachi, Ltd. · 1994
- Systems and methods for evaluating component strain123US 9,879,981 B1General Electric Company · 2018
- Method and apparatus for finding shape deformations in objects having smooth surfaces79US 6,748,112 B1General Electric Company · 2004