F04C 2270/17
Tolerance
Official title: Tolerance; Play; Gap
F04C2270/17 (Tolerance) appears on 64 US grants and 82 published applications in this corpus.
Search patents in F04C- Granted patents
- 64
- Published applications
- 82
- Assignees
- 65
- Inventors
- 217
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 3 |
| 2009 | 1 | 2 |
| 2010 | 1 | 6 |
| 2011 | 2 | 6 |
| 2012 | 0 | 2 |
| 2013 | 8 | 2 |
| 2014 | 2 | 4 |
| 2015 | 2 | 6 |
| 2016 | 4 | 2 |
| 2017 | 4 | 4 |
| 2018 | 4 | 6 |
| 2019 | 3 | 4 |
| 2020 | 3 | 5 |
| 2021 | 3 | 7 |
| 2022 | 10 | 4 |
| 2023 | 4 | 8 |
| 2024 | 4 | 2 |
| 2025 | 3 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Compressor and air conditioner8 Sep 2026US 12,729,685 B2Gree Electric Appliances, Inc. of Zhuhai
- Dynamic control of gears in a gear pump having a drive-drive configuration27 Jan 2026US 12,535,071 B2Project Phoenix, LLC
- Dynamic control of gears in a gear pump having a drive-drive configuration4 Nov 2025US 12,460,636 B2Project Phoenix, LLC
- Screw compressor and refrigeration apparatus7 Oct 2025US 12,435,719 B2Daikin Industries, Ltd.
- Screw pump with a tapered suction-side section and a pressure-side section with a decreasing clearance5 Aug 2025US 12,378,961 B2Leybold Aktiengesellschaft
- Dynamic control of gears in a gear pump having a drive-drive configuration23 Jul 2026US 2026/0210355 A1Project Phoenix, LLC
- Hig outer rotor shadow pockets21 May 2026US 2026/0139670 A1Hanon Systems EFP Canada Ltd.
- Method for determining or monitoring the delivery flow of an eccentric screw pump5 Feb 2026US 2026/0036462 A1Seepex GmbH
- Compressor and Air Conditioner16 Jan 2025US 2025/0020125 A1Gree Electric Appliances, Inc. of Zhuhai
- Screw compressor and refrigeration apparatus9 Jan 2025US 2025/0012280 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Self compensating adjustable fit progressing cavity pump for oil-well applications with varying temperatures32US 6,457,958 B1Weatherford/Lamb, Inc. · 2002
- Electrochemical machining of scroll wraps16US 5,320,505 ATecumseh Products Company · 1994
- Co-rotating compressor8US 10,995,754 B2Emerson Climate Technologies, Inc. · 2021
- Pumping system and method of operation4US 8,753,095 B2Edwards Limited · 2014
- Screw spindle pump having a stop surface axially adjacent to an end surface of a running spindle3US 11,486,392 B2Leistritz Pumpen GmbH · 2022