F05C 2201/0448
Steel
F05C2201/0448 (Steel) appears on 565 US grants and 153 published applications in this corpus.
Search patents in F05C- Granted patents
- 565
- Published applications
- 153
- Assignees
- 236
- Inventors
- 942
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 8 | 0 |
| 1978 | 14 | 0 |
| 1979 | 7 | 0 |
| 1980 | 5 | 0 |
| 1981 | 8 | 0 |
| 1982 | 18 | 0 |
| 1983 | 5 | 0 |
| 1984 | 9 | 0 |
| 1985 | 28 | 0 |
| 1986 | 17 | 0 |
| 1987 | 30 | 0 |
| 1988 | 19 | 0 |
| 1989 | 23 | 0 |
| 1990 | 19 | 0 |
| 1991 | 25 | 0 |
| 1992 | 25 | 0 |
| 1993 | 12 | 0 |
| 1994 | 26 | 0 |
| 1995 | 11 | 0 |
| 1996 | 13 | 0 |
| 1997 | 19 | 0 |
| 1998 | 20 | 0 |
| 1999 | 14 | 0 |
| 2000 | 20 | 0 |
| 2001 | 24 | 3 |
| 2002 | 9 | 2 |
| 2003 | 6 | 6 |
| 2004 | 7 | 5 |
| 2005 | 4 | 7 |
| 2006 | 3 | 5 |
| 2007 | 1 | 2 |
| 2008 | 4 | 7 |
| 2009 | 4 | 7 |
| 2010 | 4 | 3 |
| 2011 | 1 | 7 |
| 2012 | 4 | 8 |
| 2013 | 4 | 6 |
| 2014 | 7 | 10 |
| 2015 | 8 | 12 |
| 2016 | 13 | 14 |
| 2017 | 8 | 6 |
| 2018 | 10 | 8 |
| 2019 | 7 | 5 |
| 2020 | 7 | 9 |
| 2021 | 6 | 6 |
| 2022 | 4 | 4 |
| 2023 | 4 | 5 |
| 2024 | 5 | 1 |
| 2025 | 4 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for producing a water-hydraulic machine24 Mar 2026US 12,584,470 B2Danfoss A/S
- Wear resistant fluid ends28 Oct 2025US 12,454,951 B2Kennametal Inc.
- Piston assembly with opposing injection regions for an opposed-piston engine3 Jun 2025US 12,320,312 B2Achates Power, Inc.
- Housing assembly for rotary engine6 May 2025US 12,291,991 B1Pratt & Whitney Canada Corp.
- Eccentric screw pump with a pressure chamber between an elastomeric stator portion and a casing4 Feb 2025US 12,215,689 B2Grundfos Holding A/S
- Vacuum pump17 Sep 2026US 2026/0275984 A1
- Double diaphragm pump with improved plain bearing27 Aug 2026US 2026/0251134 A1Lutz Pumpen GmbH
- Gear pump or gear motor26 Jun 2025US 2025/0207585 A1Daikin Industries, Ltd.
- Compressor and refrigeration cycle device5 Jun 2025US 2025/0180257 A1Hitachi-Johnson Controls Air Conditioning, Inc.
- Low coefficient of expansion rotors for vacuum boosters20 Mar 2025US 2025/0092873 A1
Most cited
By later US patents
- Composite synthetic materials149US 4,960,643 A1990
- Fastening devices140US 5,332,348 A1994
- Thermally sprayed aluminum-bronze coatings on aluminum engine bores121US 5,080,056 AGeneral Motors Corporation · 1992
- Corrosion resistant fluid end for well service pumps100US 9,435,333 B2Halliburton Energy Services.Inc. · 2016
- Ball and roller bearings and bearing components98US 5,067,826 A1991