F04C 2230/21
By casting
Official title: by casting
F04C2230/21 (By casting) appears on 86 US grants and 111 published applications in this corpus.
Search patents in F04C- Granted patents
- 86
- Published applications
- 111
- Assignees
- 78
- Inventors
- 261
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 3 |
| 2004 | 1 | 1 |
| 2005 | 2 | 2 |
| 2006 | 1 | 3 |
| 2007 | 0 | 6 |
| 2008 | 0 | 2 |
| 2009 | 4 | 1 |
| 2010 | 2 | 7 |
| 2011 | 2 | 7 |
| 2012 | 2 | 4 |
| 2013 | 4 | 7 |
| 2014 | 5 | 7 |
| 2015 | 6 | 9 |
| 2016 | 3 | 5 |
| 2017 | 4 | 5 |
| 2018 | 5 | 9 |
| 2019 | 7 | 0 |
| 2020 | 6 | 6 |
| 2021 | 1 | 5 |
| 2022 | 2 | 4 |
| 2023 | 5 | 5 |
| 2024 | 4 | 4 |
| 2025 | 1 | 4 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Screw pump and its components2 Jun 2026US 12,644,452 B2Illinois Tool Works Inc.
- Fluid pump with embedded heat dissipating plate17 Mar 2026US 12,577,960 B2Valeo Powertrain GmbH
- Screw pump and its components24 Feb 2026US 12,560,167 B2Illinois Tool Works Inc.
- End plates and inner plate bushings for pumps21 Oct 2025US 12,448,966 B2T & E Pumps Ltd.
- Low coefficient of expansion rotors for vacuum boosters3 Dec 2024US 12,158,146 B2Industrial Technologies and Services, LLC
- Electric oil pump, housing body portion, and pump cover1 Oct 2026US 2026/0298227 A1Nidec Powertrain Systems Corporation
- Screw pump and its components25 Jun 2026US 2026/0175493 A1Illiois Tool Works Inc.
- Screw Pump and its Components14 May 2026US 2026/0132787 A1Illinois Tool Works Inc.
- Scroll plate cover and scroll compressor23 Apr 2026US 2026/0110298 A1
- Stators for Eccentric Screw Pumps, Eccentric Screw Pump and Production Method26 Feb 2026US 2026/0055761 A1NETZSCH Pumpen & Systeme GmbH
Most cited
By later US patents
- Dry running flexible impeller pump and method of manufacture90US 7,866,942 B22011
- Method for making herringbone gears54US 5,865,239 AMicropump, Inc. · 1999
- Powder metal scrolls43US 6,705,848 B2Copeland Corporation · 2004
- Method of fabricating scroll members25US 4,512,066 AArthur D. Little, Inc. · 1985
- Gray cast iron system for scroll machines19US 5,580,401 ACopeland Corporation · 1996