F01C 1/165
Having more than two rotary pistons with parallel axes
Official title: {having more than two rotary pistons with parallel axes}
F01C1/165 (Having more than two rotary pistons with parallel axes) appears on 7 US grants and 5 published applications in this corpus.
Search patents in F01C- Granted patents
- 7
- Published applications
- 5
- Assignees
- 6
- Inventors
- 9
- Latest grant
- 11 Dec 2012
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 2 | 0 |
| 1989 | 3 | 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 | 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 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Positive displacement rotary components having main and gate rotors with axial flow inlets and outlets11 Dec 2012US 8,328,542 B2General Electric Company
- Method for manufacturing a machine housing having a surface-hardened fluid chamber23 Aug 2011US 8,003,912 B2Brinkmann Pumpen K. H. Brinkmann GmbH & Co. KG
- Positive displacement rotary mechanism31 Oct 1989US 4,877,385 AGeneral Motors Corporation
- Positive displacement rotary mechanism29 Aug 1989US 4,860,705 AGeneral Motors Corporation
- Positive displacement rotary mechanism27 Jun 1989US 4,841,930 AGeneral Motors Corporation
- Planetary rotor machine with double sheer synchronizing mechanism18 Jun 2026US 2026/0168381 A1Radius 1, LLC
- Internal combustion engine21 Aug 2025US 2025/0264023 A1
- Planetary rotor machine with synchronizing mechanism11 Jun 2015US 2015/0159648 A1Helidyne LLC
- Method for Manufacturing a Machine Housing Having a Surface-Hardened Fluid Chamber15 Jul 2010US 2010/0178518 A1Brinkmann Pumpen K. H. Brinkmann GmbH & Co. KG
- Positive displacement rotary components having main and gate rotors with axial flow inlets and outlets1 Jul 2010US 2010/0166591 A1General Electric Company
Most cited
By later US patents
- Fluid motor or pump10US 4,776,779 AWassan Pty Ltd. · 1988
- Positive displacement rotary mechanism10US 4,782,802 AGeneral Motors Corporation · 1988
- Positive displacement rotary mechanism4US 4,877,385 AGeneral Motors Corporation · 1989
- Positive displacement rotary mechanism3US 4,860,705 AGeneral Motors Corporation · 1989
- Positive displacement rotary mechanism2US 4,841,930 AGeneral Motors Corporation · 1989