F02G 1/0535
Seals or sealing arrangements
Official title: {Seals or sealing arrangements}
F02G1/0535 (Seals or sealing arrangements) appears on 127 US grants and 66 published applications in this corpus.
Search patents in F02G- Granted patents
- 127
- Published applications
- 66
- Assignees
- 59
- Inventors
- 191
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 8 | 0 |
| 1985 | 4 | 0 |
| 1986 | 7 | 0 |
| 1987 | 11 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 3 |
| 2004 | 0 | 5 |
| 2005 | 4 | 3 |
| 2006 | 4 | 4 |
| 2007 | 1 | 1 |
| 2008 | 1 | 3 |
| 2009 | 1 | 3 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 0 | 3 |
| 2015 | 1 | 3 |
| 2016 | 1 | 3 |
| 2017 | 4 | 0 |
| 2018 | 7 | 10 |
| 2019 | 1 | 2 |
| 2020 | 4 | 6 |
| 2021 | 4 | 2 |
| 2022 | 4 | 4 |
| 2023 | 4 | 3 |
| 2024 | 3 | 2 |
| 2025 | 2 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Asymmetric gas bearing bushing for thermo-pump21 Oct 2025US 12,448,963 B2KLA Corporation
- Rod seal assemblies for machines with crossheads and sealed oscillating rods4 Feb 2025US 12,215,653 B2EnergyIntel Services Ltd.
- Near isothermal machine10 Sep 2024US 12,085,041 B2Isothermal Limited
- Stirling cycle machine3 Sep 2024US 12,078,123 B2DEKA Products Limited Partnership
- Reciprocating heat engine with hot cylinder head and cold cylinder4 Jun 2024US 12,000,357 B2
- Hot-gas free-piston stirling engine with efficient hot air inlet2 Apr 2026US 2026/0092576 A1Exowatt, Inc.
- Slow actuation mechanoliquid piston heat pump29 May 2025US 2025/0172107 A1
- Stirling cycle machine27 Feb 2025US 2025/0067230 A1DEKA Products Limited Partnership
- Asymmetric gas bearing bushing for thermo-pump10 Oct 2024US 2024/0337259 A1KLA Corporation
- Near isothermal machine28 Mar 2024US 2024/0102430 A1Isothermal Limited
Most cited
By later US patents
- Split four stroke cycle internal combustion engine63US 6,543,225 B2Scuderi Group, LLC · 2003
- Atmospheric storage and transfer of thermal energy58US 10,082,104 B2X Development LLC · 2018
- Split four stroke engine50US 6,609,371 B2Scuderi Group, LLC · 2003
- Shaft seal device39US 4,222,575 ANippon Piston Ring Co., Ltd. · 1980
- Refrigeration system with linear motor trimming of displacer movement33US 4,475,346 AHelix Technology Corporation · 1984