F04C 27/006
Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type
Official title: {Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type pumps, e.g. gear pumps}
F04C27/006 (Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type) appears on 42 US grants and 46 published applications in this corpus.
Search patents in F04C- Granted patents
- 42
- Published applications
- 46
- Assignees
- 37
- Inventors
- 110
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 2 | 2 |
| 2010 | 0 | 2 |
| 2011 | 1 | 2 |
| 2012 | 0 | 2 |
| 2013 | 2 | 2 |
| 2014 | 1 | 5 |
| 2015 | 3 | 7 |
| 2016 | 3 | 2 |
| 2017 | 7 | 1 |
| 2018 | 2 | 0 |
| 2019 | 0 | 4 |
| 2020 | 1 | 5 |
| 2021 | 4 | 1 |
| 2022 | 2 | 1 |
| 2023 | 4 | 1 |
| 2024 | 1 | 3 |
| 2025 | 4 | 4 |
| 2026 | 2 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Sealing gasket with one or more positioning protrusions7 Jul 2026US 12,674,457 B2Edwards Limited
- Supercharged internal combustion engine with intake port timing shutters controlling the air mass flowing into the supercharger31 Mar 2026US 12,590,584 B2
- Rotary piston compressor7 Oct 2025US 12,435,720 B2
- Gear pump with suction housing element providing a tight seal between suction and high-pressure chamber to increase pump efficiency and method of providing tight seal27 May 2025US 12,313,071 B1Hamilton Sundstrand Corporation
- Scroll compressor with circular surface terminations11 Feb 2025US 12,221,962 B2
- Sealing gasket4 Dec 2025US 2025/0369443 A1Edwards Limited
- Gear pump or gear motor26 Jun 2025US 2025/0207585 A1Daikin Industries, Ltd.
- Screw compressor and freezer9 Jan 2025US 2025/0012278 A1Daikin Industries, Ltd.
- Supercharged internal combustion engine2 Jan 2025US 2025/0003363 A1Hansen Engine Corporation
- Rotary piston compressor7 Nov 2024US 2024/0369061 A1
Most cited
By later US patents
- Motor-pump unit10US 9,945,377 B2Eckerle Industrie-Elektronik GmbH · 2018
- Scroll compressor with reduced upsetting moment4US 9,127,669 B2Daikin Industries, Ltd. · 2015
- Scroll compressor with circular surface terminations3US 11,339,786 B22022
- Compressor and refrigeration apparatus3US 8,419,395 B2Daikin Industries, Ltd. · 2013
- Multi-stage vacuum pump3US 9,739,278 B2Edwards Limited · 2017