F04B 2201/0205
Piston ring wear
F04B2201/0205 (Piston ring wear) appears on 6 US grants and 6 published applications in this corpus.
Search patents in F04B- Granted patents
- 6
- Published applications
- 6
- Assignees
- 5
- Inventors
- 12
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Packing case with degradation monitoring30 Sep 2025US 12,429,048 B2Dover Pumps & Process Solutions Segment, Inc.
- Automatic determination of trigger angle for reciprocating compressor rod drop measurements27 Aug 2024US 12,072,268 B2epro GmbH
- Method and device for determining a wear condition in a hydrostatic pump30 May 2023US 11,661,937 B2Moog Inc.
- Monitor to check the path of motion of reciprocating piston7 Mar 2006US 7,007,563 B2Hoerbiger Kompressortechnik Services GmbH
- Reciprocating pump system and method for operating same8 Dec 1998US 5,846,056 A
- Packing case with degradation monitoring18 Dec 2025US 2025/0382959 A1Dover Pumps & Process Solutions Segment, Inc.
- Packing case with degradation monitoring11 Jul 2024US 2024/0229788 A9Dover Pumps & Process Solutions Segment, Inc.
- Packing case with degradation monitoring25 Apr 2024US 2024/0133374 A1Dover Pumps & Process Solutions Segment, Inc.
- Automatic Determination of Trigger Angle for Reciprocating Compressor Rod Drop Measurements13 Apr 2023US 2023/0113754 A1epro GmbH
- Method and Device for Determining a Wear Condition in a Hydrostatic Pump10 Jun 2021US 2021/0172433 A1Moog Inc.
Most cited
By later US patents
- Reciprocating pump system and method for operating same135US 5,846,056 A1998
- Method and apparatus for analyzing the operating condition of a machine25US 5,112,196 ABeta Machinery Analysis Ltd. · 1992
- Monitor to check the path of motion of reciprocating piston4US 7,007,563 B2Hoerbiger Kompressortechnik Services GmbH · 2006