F16J 9/061
Using metallic coiled or blade springs
Official title: {using metallic coiled or blade springs (F16J9/145 takes precedence)}
F16J9/061 (Using metallic coiled or blade springs) appears on 123 US grants and 88 published applications in this corpus.
Search patents in F16J- Granted patents
- 123
- Published applications
- 88
- Assignees
- 71
- Inventors
- 258
- Latest grant
- 24 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 5 | 1 |
| 2002 | 2 | 5 |
| 2003 | 5 | 7 |
| 2004 | 3 | 3 |
| 2005 | 1 | 1 |
| 2006 | 2 | 5 |
| 2007 | 4 | 4 |
| 2008 | 2 | 2 |
| 2009 | 1 | 2 |
| 2010 | 3 | 4 |
| 2011 | 1 | 2 |
| 2012 | 0 | 4 |
| 2013 | 3 | 13 |
| 2014 | 2 | 4 |
| 2015 | 5 | 2 |
| 2016 | 6 | 2 |
| 2017 | 2 | 5 |
| 2018 | 5 | 4 |
| 2019 | 4 | 0 |
| 2020 | 1 | 3 |
| 2021 | 1 | 5 |
| 2022 | 5 | 3 |
| 2023 | 1 | 2 |
| 2024 | 5 | 2 |
| 2025 | 0 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Oil control ring24 Dec 2024US 12,173,799 B2Tpr Co., Ltd.
- Dynamic axial seal systems and methods8 Oct 2024US 12,110,967 B2OneSubsea IP UK Limited
- Piston ring16 Jul 2024US 12,038,089 B2Toyota Jidosha Kabushiki Kaisha
- Cylinder of an internal combustion engine14 May 2024US 11,982,357 B2MAN Energy Solutions SE
- Springs for piston ring biasing16 Jan 2024US 11,873,906 B2Mainspring Energy, Inc.
- Seal assembly for build tanks20 Aug 2026US 2026/0243350 A1General Electric Company
- Oil control ring26 Feb 2026US 2026/0055813 A1Riken
- Oil ring and method for manufacturing oil ring2 Oct 2025US 2025/0305582 A1Nippon Piston Ring Co., Ltd.
- Dynamic axial seal systems and methods4 Jul 2024US 2024/0218931 A1OneSubsea IP UK Limited
- Oil control ring2 May 2024US 2024/0141993 A1Tpr Co., Ltd.
Most cited
By later US patents
- Cryogenic refrigerator and regenerative heat exchange material23US 5,447,034 AKabushiki Kaisha Toshiba · 1995
- Piston ring employing elastomeric sealing member within the ring groove23US 5,474,307 A1995
- Combined oil ring21US 5,295,696 ATeikoku Piston Ring Co., Ltd. · 1994
- Spring loaded guide ring20US 4,906,109 A1990
- Seal assembly for stirling engine19US 5,199,722 AAisin Seiki Kabushiki Kaisha · 1993