F16J 9/145
Of spring expanders
Official title: {of spring expanders}
F16J9/145 (Of spring expanders) appears on 30 US grants and 9 published applications in this corpus.
Search patents in F16J- Granted patents
- 30
- Published applications
- 9
- Assignees
- 21
- Inventors
- 52
- Latest grant
- 10 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 2 |
| 2022 | 2 | 2 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Oil control ring10 Dec 2024US 12,163,592 B2Federal-Mogul Burscheid GmbH
- Cryogenic piston ring improvement10 May 2022US 11,326,694 B2Acd, LLC
- Joining support jig29 Mar 2022US 11,287,038 B2Honda Motor Co., Ltd.
- Piston seal assembly with controlled leakage11 Jun 2019US 10,316,837 B2Westport Power Inc.
- Oil-control ring for an internal combustion engine31 Jan 2012US 8,104,771 B2Mahle International GmbH
- Sealing ring assembly with spring element19 Mar 2026US 2026/0078822 A1
- Oil control ring29 Dec 2022US 2022/0412459 A1Federal-Mogul Burscheid GmbH
- Piston ring unit and compressor23 Jun 2022US 2022/0196151 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Joining support jig16 Sep 2021US 2021/0285543 A1Honda Motor Co., Ltd.
- Cryogenic piston ring improvement17 Jun 2021US 2021/0180694 A1Acd, LLC
Most cited
By later US patents
- Compound seal with pressure equalization aperture27US 4,681,327 ASociete Nationale d'Etude et de Construction de Moteurs D'Aviation "S.N.E.C.M A." · 1987
- Sealing assembly17US 5,275,422 ALeber Corporation · 1994
- Steel oil ring assembly14US 5,129,661 ARiken · 1992
- Piston ring seal with pressure distribution grooves12US 4,592,559 AFoster-Miller, Inc. · 1986
- Side and gap sealed oil ring12US 5,564,699 ACaterpillar Inc. · 1996