F01D 25/002
Cleaning of turbomachines
Official title: {Cleaning of turbomachines}
F01D25/002 (Cleaning of turbomachines) appears on 443 US grants and 564 published applications in this corpus.
Search patents in F01D- Granted patents
- 443
- Published applications
- 564
- Assignees
- 145
- Inventors
- 1,071
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 1 |
| 2002 | 12 | 16 |
| 2003 | 9 | 7 |
| 2004 | 5 | 7 |
| 2005 | 2 | 8 |
| 2006 | 7 | 12 |
| 2007 | 3 | 13 |
| 2008 | 8 | 23 |
| 2009 | 7 | 18 |
| 2010 | 8 | 29 |
| 2011 | 11 | 21 |
| 2012 | 19 | 10 |
| 2013 | 11 | 21 |
| 2014 | 19 | 32 |
| 2015 | 19 | 38 |
| 2016 | 22 | 40 |
| 2017 | 27 | 32 |
| 2018 | 23 | 48 |
| 2019 | 22 | 27 |
| 2020 | 28 | 33 |
| 2021 | 23 | 16 |
| 2022 | 27 | 24 |
| 2023 | 24 | 19 |
| 2024 | 21 | 21 |
| 2025 | 17 | 14 |
| 2026 | 13 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for removing scale from geothermal turbine blade and method for geothermal power generation22 Sep 2026US 12,742,442 B2Japan Metals & Chemicals Co., Ltd.
- Method of pre-operational cleaning of water and steam systems in combined cycle power plants and combined cycle power plant arranged therefor25 Aug 2026US 12,716,366 B2GE Vernova Infrastructure Technology LLC
- Self-cleaning for torch ignitors25 Aug 2026US 12,716,390 B2Collins Engine Nozzles, Inc.
- Coating system and method for maintenance thereof16 Jun 2026US 12,655,066 B2ROLLS-ROYCE plc
- Method for repairing a gas turbine engine component2 Jun 2026US 12,644,391 B2Rtx Corporation
- System and method for aircraft engine washing1 Oct 2026US 2026/0298107 A1Pratt & Whitney Canada Corp.
- Method of cleaning coke from an engine component24 Sep 2026US 2026/0284718 A1GE AEROSPACE POLAND sp. z o. o.
- Composite Blast Media and Method for Media Blasting Gas Turbine Component Using Same30 Jul 2026US 2026/0218627 A1Chromalloy Gas Turbine Corporation
- System and method for cooling a turbine and reducing greenhouse gas emissions therefrom23 Jul 2026US 2026/0210270 A1Powergen Energy LLC
- Apparatus and method of purging gas turbine exhaust trough to reduce hot flow leakage23 Jul 2026US 2026/0210274 A1General Electric Company
Most cited
By later US patents
- Cleaning and preservation unit for turbine engine101US 4,059,123 AAvco Corporation · 1977
- Pulse combusted acoustic agglomeration apparatus and process95US 5,353,721 AManufacturing and Technology Conversion International, Inc. · 1994
- Method and apparatus for cleaning a gas turbine engine74US 5,011,540 A1991
- Methods for foam cleaning combustion turbines73US 6,478,033 B1HydroChem Industrial Services, Inc. · 2002
- Removable wash spray apparatus for gas turbine engine65US 4,196,020 AAvco Corporation · 1980