F05C 2201/021
Aluminium
F05C2201/021 (Aluminium) appears on 1,062 US grants and 357 published applications in this corpus.
Search patents in F05C- Granted patents
- 1,062
- Published applications
- 357
- Assignees
- 391
- Inventors
- 1,934
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 14 | 0 |
| 1979 | 9 | 0 |
| 1980 | 4 | 0 |
| 1981 | 12 | 0 |
| 1982 | 16 | 0 |
| 1983 | 10 | 0 |
| 1984 | 16 | 0 |
| 1985 | 35 | 0 |
| 1986 | 15 | 0 |
| 1987 | 52 | 0 |
| 1988 | 32 | 0 |
| 1989 | 38 | 0 |
| 1990 | 38 | 0 |
| 1991 | 47 | 0 |
| 1992 | 34 | 0 |
| 1993 | 22 | 0 |
| 1994 | 33 | 0 |
| 1995 | 34 | 0 |
| 1996 | 32 | 0 |
| 1997 | 37 | 0 |
| 1998 | 38 | 0 |
| 1999 | 51 | 0 |
| 2000 | 57 | 0 |
| 2001 | 44 | 26 |
| 2002 | 53 | 50 |
| 2003 | 52 | 29 |
| 2004 | 33 | 35 |
| 2005 | 26 | 16 |
| 2006 | 18 | 8 |
| 2007 | 8 | 10 |
| 2008 | 4 | 8 |
| 2009 | 7 | 7 |
| 2010 | 7 | 14 |
| 2011 | 0 | 7 |
| 2012 | 8 | 13 |
| 2013 | 4 | 10 |
| 2014 | 6 | 10 |
| 2015 | 16 | 30 |
| 2016 | 15 | 12 |
| 2017 | 10 | 16 |
| 2018 | 11 | 7 |
| 2019 | 14 | 13 |
| 2020 | 12 | 17 |
| 2021 | 7 | 2 |
| 2022 | 8 | 5 |
| 2023 | 3 | 2 |
| 2024 | 3 | 5 |
| 2025 | 4 | 3 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fretting resistant rotary engine housings18 Aug 2026US 12,709,983 B2Pratt & Whitney Canada Corp.
- Method for producing a housing, and shell housing and housing for a rotary piston engine26 May 2026US 12,637,946 B2Knapp e-mobility GmbH
- Scroll compressor10 Feb 2026US 12,546,314 B2Sanden Corporation
- Embedded piston structures7 Oct 2025US 12,435,679 B2Brp-Rotax GmbH & Co. KG
- Rotary engine with seal having elastomeric member and shield23 Sep 2025US 12,421,912 B2Pratt & Whitney Canada Corp.
- Vacuum pump17 Sep 2026US 2026/0275984 A1
- Composite membrane for membrane pump5 Feb 2026US 2026/0036123 A1
- Scroll compressor20 Nov 2025US 2025/0354554 A1Sanden Corporation
- Rotor pump with dual-sided inlets22 May 2025US 2025/0163911 A1Joby Aero, Inc.
- Fretting resistant rotary engine housings6 Mar 2025US 2025/0075622 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Controller for permanent magnet generator155US 5,625,276 AColeman Powermate, Inc. · 1997
- External combustion slidable vane motor with air cushions149US 4,672,813 A1987
- 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