F04F 99/00
Subject matter not provided for in other groups of this subclass
F04F99/00 (Subject matter not provided for in other groups of this subclass) appears on 34 US grants and 35 published applications in this corpus.
Search patents in F04F- Granted patents
- 34
- Published applications
- 35
- Assignees
- 31
- Inventors
- 87
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 3 |
| 2012 | 0 | 1 |
| 2013 | 2 | 3 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 2 |
| 2017 | 2 | 2 |
| 2018 | 2 | 2 |
| 2019 | 1 | 4 |
| 2020 | 1 | 1 |
| 2021 | 5 | 2 |
| 2022 | 1 | 3 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrolytic pumping system25 Aug 2026US 12,716,332 B2
- Flamed-based vacuum generator3 Dec 2024US 12,157,205 B2Zhejiang University
- Aspirator integrated pressure relief valve and vent valve for an inflation system19 Apr 2022US 11,306,743 B2Goodrich Corporation
- Disposable alternating tangential flow filtration units26 Oct 2021US 11,156,219 B2Repligen Corporation
- Compressor having elliptically-shaped combustion chambers with fuel injection and ignition occurring at the foci27 Jul 2021US 11,073,168 B2
- Pumping Device, Pumping Method, and Radiation Generator Thereof1 Oct 2026US 2026/0298267 A1Brightest Technology Taiwan Co., Ltd.
- Electrolytic pumping system11 Jun 2026US 2026/0160156 A1
- Distribution Manifold27 Feb 2025US 2025/0066143 A1Weir Minerals Netherlands B.V.
- Disposable Alternating Tangential Flow Filtration Units23 Mar 2023US 2023/0093783 A9Repligen Corporation
- Variable power magnetohydrodynamic accelerator, compressor, and mixer for fluids, with regenerative electrical generation system23 Jun 2022US 2022/0200434 A1
Most cited
By later US patents
- Magnetically actuated fluid handling devices for microfluidic applications164US 6,415,821 B2University of Washington · 2002
- Method and apparatus for filling a storage vessel with compressed gas72US 6,652,243 B2NEOgas Inc. · 2003
- Liquid spray compressor59US 5,616,007 A1997
- Magnetically actuated fluid handling devices for microfluidic applications54US 6,408,884 B1University of Washington · 2002
- Rotary energy recovery device19US 10,138,907 B2Energy Recovery, Inc. · 2018