F05D 2270/81
Microphones
F05D2270/81 (Microphones) appears on 27 US grants and 38 published applications in this corpus.
Search patents in F05D- Granted patents
- 27
- Published applications
- 38
- Assignees
- 18
- Inventors
- 89
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 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 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 2 | 5 |
| 2019 | 3 | 4 |
| 2020 | 1 | 6 |
| 2021 | 4 | 11 |
| 2022 | 5 | 0 |
| 2023 | 3 | 5 |
| 2024 | 4 | 4 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rubbing position identification device and rubbing position identification method for rotating machine24 Feb 2026US 12,560,472 B2Mitsubishi Heavy Industries, Ltd.
- Apparatus and method for controlling wireless charger for vehicle25 Mar 2025US 12,261,450 B2Hyundai Motor Company
- Acoustical health monitoring of gas turbine engines18 Mar 2025US 12,252,995 B2Pratt & Whitney Canada Corp.
- Method for monitoring elements in a turbine engine combustion chamber27 Aug 2024US 12,072,261 B2Safran Aircraft Engines
- Device, optimization method and system for cooperative matching of heat dissipation and noise23 Jul 2024US 12,044,246 B2Jiangsu Xcmg Construction Machinery Research Institute Ltd.
- Method for monitoring a turbomachine14 Aug 2025US 2025/0258062 A1MTU Aero Engines AG
- Gas turbine engine with clutch assembly19 Dec 2024US 2024/0417101 A1General Electric Company
- Pump monitoring system and method1 Aug 2024US 2024/0254996 A1
- Rubbing position identification device and rubbing position identification method for rotating machine13 Jun 2024US 2024/0192047 A1Mitsubishi Heavy Industries, Ltd.
- Acoustical health monitoring of gas turbine engines22 Feb 2024US 2024/0060428 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Gas turbine engine outlet guide vane assembly14US 11,401,824 B2General Electric Company · 2022
- Active control of tone noise in engine ducts14US 5,692,702 AThe Boeing Company · 1997
- Shaft shear detection through shaft oscillation7US 10,228,305 B2Pratt & Whitney Canada Corp. · 2019
- Geared gas turbine engine7US 10,975,802 B2ROLLS-ROYCE plc · 2021
- MFCC and CELP to detect turbine engine faults7US 8,655,571 B2United Technologies Corporation · 2014