F01C 19/08
Axially-movable sealings for working fluids
F01C19/08 (Axially-movable sealings for working fluids) appears on 185 US grants and 97 published applications in this corpus.
Search patents in F01C- Granted patents
- 185
- Published applications
- 97
- Assignees
- 102
- Inventors
- 290
- Latest grant
- 18 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 11 | 0 |
| 1978 | 7 | 0 |
| 1979 | 2 | 0 |
| 1980 | 7 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 4 |
| 2004 | 0 | 0 |
| 2005 | 1 | 5 |
| 2006 | 3 | 5 |
| 2007 | 6 | 5 |
| 2008 | 2 | 3 |
| 2009 | 2 | 3 |
| 2010 | 1 | 4 |
| 2011 | 4 | 4 |
| 2012 | 2 | 3 |
| 2013 | 2 | 10 |
| 2014 | 6 | 11 |
| 2015 | 4 | 7 |
| 2016 | 9 | 5 |
| 2017 | 6 | 2 |
| 2018 | 4 | 5 |
| 2019 | 3 | 3 |
| 2020 | 3 | 5 |
| 2021 | 5 | 3 |
| 2022 | 3 | 3 |
| 2023 | 4 | 2 |
| 2024 | 2 | 2 |
| 2025 | 4 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Combined sealing piece, volumetric machine and wide fuel engine18 Nov 2025US 12,473,872 B2
- Rotary piston compressor7 Oct 2025US 12,435,720 B2
- Rotary combustion engine block sealing18 Mar 2025US 12,252,990 B2
- Rotary engine with seal having elastomeric and metallic members14 Jan 2025US 12,196,154 B2Pratt & Whitney Canada Corp.
- Rotary engine11 Jun 2024US 12,006,863 B1
- Rotary Engine Housing16 Jul 2026US 2026/0201831 A1Pratt & Whitney Canada Corp.
- Combined Sealing Piece, Volumetric Machine and Wide Fuel Engine19 Jun 2025US 2025/0198363 A1
- Rotary engine with seal having elastomeric and metallic members5 Dec 2024US 2024/0401545 A1Pratt & Whitney Canada Corp.
- Rotary piston compressor7 Nov 2024US 2024/0369061 A1
- Rotary Combustion Engine Block Sealing10 Aug 2023US 2023/0250722 A1
Most cited
By later US patents
- Scroll-type machine with axially compliant mounting226US 4,877,382 ACopeland Corporation · 1989
- Scroll-type machine with axially compliant mounting122US 4,767,293 ACopeland Corporation · 1988
- Non-orbiting scroll mounting arrangements for a scroll machine115US 5,102,316 ACopeland Corporation · 1992
- Axial compliance means with radial sealing for scroll-type apparatus80US 3,994,636 AArthur D. Little, Inc. · 1976
- Scroll compressor having a partition defining a discharge chamber67US 5,427,511 ACopeland Corporation · 1995