F16J 15/3212
With metal springs
Official title: with metal springs
F16J15/3212 (With metal springs) appears on 233 US grants and 266 published applications in this corpus.
Search patents in F16J- Granted patents
- 233
- Published applications
- 266
- Assignees
- 135
- Inventors
- 499
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 2 |
| 2003 | 1 | 1 |
| 2004 | 2 | 6 |
| 2005 | 1 | 11 |
| 2006 | 6 | 7 |
| 2007 | 4 | 5 |
| 2008 | 5 | 6 |
| 2009 | 2 | 5 |
| 2010 | 2 | 9 |
| 2011 | 2 | 11 |
| 2012 | 6 | 4 |
| 2013 | 6 | 11 |
| 2014 | 7 | 6 |
| 2015 | 6 | 14 |
| 2016 | 9 | 16 |
| 2017 | 14 | 17 |
| 2018 | 7 | 15 |
| 2019 | 11 | 16 |
| 2020 | 15 | 17 |
| 2021 | 7 | 18 |
| 2022 | 13 | 14 |
| 2023 | 13 | 18 |
| 2024 | 16 | 17 |
| 2025 | 14 | 13 |
| 2026 | 12 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid end with clamped retention25 Aug 2026US 12,716,495 B2Kerr Machine Co.
- Fixing device11 Aug 2026US 12,704,143 B2Deere & Company
- Shaft sealing ring and shaft arrangement for high rotational speeds11 Aug 2026US 12,704,180 B2Trelleborg Sealing Solutions Germany GmbH
- Sealing device21 Jul 2026US 12,687,228 B2Nok Corporation
- Laterally moveable compressor piston rod lip seal assembly9 Jun 2026US 12,650,172 B2Ariel Corporation
- Side channel compressor having a seal assembly20 Aug 2026US 2026/0243268 A1
- Seal assembly for build tanks20 Aug 2026US 2026/0243350 A1General Electric Company
- Lip seals and related methods16 Jul 2026US 2026/0201953 A1Bal Seal Engineering, Inc.
- Discharge unit, discharge arrangement and force transmission arrangement23 Apr 2026US 2026/0110361 A1ElringKlinger AG
- Piston for dosing pump19 Mar 2026US 2026/0079035 A1
Most cited
By later US patents
- Canted coiled spring and seal196US 4,655,462 A1987
- Capped spring-energized seal107US 5,799,953 AAmerican Variseal · 1998
- Cartridge seal stack104US 6,161,838 ABal Seal Engineering, Inc. · 2000
- Inside back angle canted coil spring100US 4,826,144 A1989
- Dual concentric canted-coil spring apparatus92US 4,907,788 A1990