F01D 23/00
Non-positive-displacement machines or engines with movement other than pure rotation
Official title: Non-positive-displacement machines or engines with movement other than pure rotation, e.g. of endless-chain type
F01D23/00 (Non-positive-displacement machines or engines with movement other than pure rotation) appears on 9 US grants and 6 published applications in this corpus.
Search patents in F01D- Granted patents
- 9
- Published applications
- 6
- Assignees
- 3
- Inventors
- 15
- Latest grant
- 21 May 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 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 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 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 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Acoustical health monitoring for turbomachinery21 May 2024US 11,988,105 B2The Boeing Company
- Ring turbine arrangements for electricity generation and other applications21 Jul 2020US 10,718,228 B2
- Endless belt energy converter27 Jun 2017US 9,689,369 B2
- Propulsion device19 Jul 2016US 9,394,049 B1
- Apparatus for generating a fluid flow20 Aug 2002US 6,435,827 B1
- Oblong turbine25 Jun 2026US 2026/0176975 A1
- Variable trajectory non-circular drive system2 Oct 2025US 2025/0305419 A1
- Acoustical health monitoring for turbomachinery31 Dec 2020US 2020/0408106 A1The Boeing Company
- Ring Turbine Arrangements for Electricity Generation and Other Applications1 Mar 2018US 2018/0058244 A1
- Endless Belt Energy Converter8 Oct 2015US 2015/0285210 A1
Most cited
By later US patents
- Wind-driven generator25US 4,494,008 A1985
- Apparatus and method for producing power using the excess pressure in natural gas pipelines13US 5,555,728 AWelch, Welch and Swanson · 1996
- Apparatus for generating a fluid flow11US 6,435,827 B12002
- Endless belt energy converter2US 9,689,369 B22017
- Acoustical health monitoring for turbomachinery1US 11,988,105 B2The Boeing Company · 2024