F04D 23/006
Creating a pulsating flow
Official title: {Creating a pulsating flow}
F04D23/006 (Creating a pulsating flow) appears on 12 US grants and 15 published applications in this corpus.
Search patents in F04D- Granted patents
- 12
- Published applications
- 15
- Assignees
- 16
- Inventors
- 32
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 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 | 2 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 2 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 2 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 2 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Rotary-pulsation device24 May 2022US 11,338,258 B2Limited Liability Company "Bioenergy"
- Machine and process for filterless wet removal of particles from and humidification of air12 Oct 2021US 11,143,195 B2Isaacs Hydropermutation Technologies, Inc.
- System and method of a fan17 Sep 2019US 10,415,574 B2
- Aero-acoustic materials processing apparatus and method26 Oct 2023US 2023/0338965 A1Vortex Industrial Solutions Ltd
- Blowing apparatus29 Jun 2023US 2023/0204026 A1LG Display Co., Ltd.
- Systems and methods of centrifugal moving wave compressors1 Apr 2021US 2021/0095688 A1Ingersoll-Rand Company
- Rotary-pulsation device25 Mar 2021US 2021/0086147 A1Limited Liability Company "Bioenergy"
- Machine and process for filterless wet removal of particles from and humidification of air16 May 2019US 2019/0145422 A1Isaacs Hydropermutation Technologies, Inc.
Most cited
By later US patents
- Non-vibrational oscillating blade piezoelectric blower89US 4,595,338 APiezo Electric Products, Inc. · 1986
- High temperature, high speed rotary valve17US 5,913,329 AKimberly-Clark Worldwide, Inc. · 1999
- Rotating unit for an axial-flow compressor2US 8,251,646 B2Rolls-Royce Deutschland Ltd & Co KG · 2012
- Low noise cooling device1US 8,218,318 B2Koninklijke Philips Electronics N. V. · 2012