F04C 2230/22
By sintering
Official title: by sintering
F04C2230/22 (By sintering) appears on 66 US grants and 67 published applications in this corpus.
Search patents in F04C- Granted patents
- 66
- Published applications
- 67
- Assignees
- 55
- Inventors
- 210
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 0 |
| 2003 | 0 | 2 |
| 2004 | 2 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 4 |
| 2008 | 2 | 7 |
| 2009 | 3 | 3 |
| 2010 | 2 | 5 |
| 2011 | 1 | 2 |
| 2012 | 1 | 3 |
| 2013 | 4 | 2 |
| 2014 | 1 | 2 |
| 2015 | 5 | 6 |
| 2016 | 0 | 3 |
| 2017 | 2 | 2 |
| 2018 | 2 | 5 |
| 2019 | 0 | 2 |
| 2020 | 3 | 3 |
| 2021 | 2 | 3 |
| 2022 | 1 | 0 |
| 2023 | 4 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 4 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Eccentric screw pump with weakening recesses in the power train27 Jan 2026US 12,535,070 B2NETZSCH Pumpen & Systeme GmbH
- Outer ring for an oil pump and a method for manufacturing the same14 Jan 2025US 12,196,206 B2Hyundai Motor Company
- Fused filament fabrication of abradable coatings7 May 2024US 11,976,569 B2Rolls-Royce North American Technologies Inc.
- Outer ring for an oil pump and a method for manufacturing the same26 Dec 2023US 11,852,139 B2Hyundai Motor Company
- Rotor for an eccentric screw pump and method for the manufacture thereof12 Dec 2023US 11,841,016 B2Vogelsang GmbH & Co. KG
- Eccentric screw pump18 Sep 2025US 2025/0290508 A1NETZSCH Pumpen & Systeme GmbH
- Scroll compressor and method for producing eccentric bush necessary for scroll compressor17 Apr 2025US 2025/0122874 A1
- Eccentric screw pump9 Jan 2025US 2025/0012276 A1NETZSCH Pumpen & Systeme GmbH
- Stator for a Pump and Method for Producing a Stator for a Pump2 Jan 2025US 2025/0003405 A1NETZSCH Pumpen & Systeme GmbH
- Outer ring for an oil pump and a method for manufacturing the same21 Mar 2024US 2024/0093684 A1Hyundai Motor Company
Most cited
By later US patents
- Scroll compressor bearing lubrication54US 6,082,495 ACopeland Corporation · 2000
- Reduced rotor assembly diameter vane pump47US 7,997,882 B2MAGNA Powertrain AG & Co KG · 2011
- Powder metal scrolls43US 6,705,848 B2Copeland Corporation · 2004
- Scroll type fluid machine with parts of sintered ceramics36US 5,511,959 AHitachi, Ltd. · 1996
- Sliding member and oil pump29US 6,089,843 ASumitomo Electric Industries, Ltd. · 2000