F01D 1/38
Of the screw type
Official title: of the screw type
F01D1/38 (Of the screw type) appears on 18 US grants and 21 published applications in this corpus.
Search patents in F01D- Granted patents
- 18
- Published applications
- 21
- Assignees
- 4
- Inventors
- 27
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 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 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 3 |
| 2003 | 3 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 2 | 2 |
| 2015 | 0 | 1 |
| 2016 | 2 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 2 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Supercharged combustor cooling using turbomachinery13 Jan 2026US 12,523,173 B2Rtx Corporation
- Boundary-layer turbomachine2 Dec 2025US 12,486,772 B2
- Power plant unit for a hybrid power plant11 May 2021US 11,002,254 B2
- Rotary positive displacement machine6 Sep 2016US 9,435,203 B2
- Screw shaft turbine compressor and system5 Apr 2016US 9,303,560 B2
- System and method for generating power5 Mar 2026US 2026/0063038 A1Boundary Energy Inc.
- Supercharged combustor cooling using turbomachinery13 Nov 2025US 2025/0347249 A1Rtx Corporation
- Boundary-layer turbomachine7 Mar 2024US 2024/0076995 A1Boundary Energy Inc.
- Turbine Comprising One or More Helical Structures and Use Thereof17 Nov 2022US 2022/0364507 A1
- Screw rocket nozzle30 Dec 2021US 2021/0404345 A1
Most cited
By later US patents
- Ribbon drive power generation apparatus and method25US 6,357,997 B12002
- Ribbon drive power generation for variable flow conditions24US 6,626,638 B22003
- Rotating nozzle generator15US 4,246,490 AGeneral Electric Company · 1981
- Air bubble powered rotary driving apparatus14US 6,269,638 B12001
- Ribbon drive pumping apparatus and method14US 6,357,998 B12002