F16J 15/3256
Comprising two casing or support elements, one attached to each surface
Official title: comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals
F16J15/3256 (Comprising two casing or support elements, one attached to each surface) appears on 605 US grants and 581 published applications in this corpus.
Search patents in F16J- Granted patents
- 605
- Published applications
- 581
- Assignees
- 211
- Inventors
- 1,017
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 11 | 0 |
| 1985 | 9 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 9 | 0 |
| 1989 | 9 | 0 |
| 1990 | 10 | 0 |
| 1991 | 14 | 0 |
| 1992 | 5 | 0 |
| 1993 | 12 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 10 | 0 |
| 1997 | 11 | 0 |
| 1998 | 5 | 0 |
| 1999 | 11 | 0 |
| 2000 | 10 | 0 |
| 2001 | 16 | 2 |
| 2002 | 18 | 14 |
| 2003 | 11 | 25 |
| 2004 | 15 | 34 |
| 2005 | 15 | 20 |
| 2006 | 21 | 21 |
| 2007 | 11 | 35 |
| 2008 | 12 | 35 |
| 2009 | 7 | 32 |
| 2010 | 16 | 35 |
| 2011 | 21 | 20 |
| 2012 | 15 | 16 |
| 2013 | 19 | 14 |
| 2014 | 15 | 16 |
| 2015 | 11 | 15 |
| 2016 | 9 | 23 |
| 2017 | 18 | 18 |
| 2018 | 18 | 28 |
| 2019 | 27 | 25 |
| 2020 | 25 | 34 |
| 2021 | 22 | 24 |
| 2022 | 20 | 33 |
| 2023 | 23 | 20 |
| 2024 | 25 | 17 |
| 2025 | 21 | 14 |
| 2026 | 4 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Outboard drive axle hub seal with venting25 Aug 2026US 12,716,497 B2Freudenberg-NOK General Partnership
- Cartridge seal25 Aug 2026US 12,716,499 B2ErgoSeal, Inc.
- Sealing device and manufacturing method therefor26 May 2026US 12,638,081 B2Schaeffler Technologies AG & Co. KG
- Wheel seal28 Apr 2026US 12,612,969 B1
- Cassette seal30 Dec 2025US 12,510,160 B2AGCO International GmbH
- Mechanical seal24 Sep 2026US 2026/0287060 A1Eagle Industry Co., Ltd.
- Hub bearing20 Aug 2026US 2026/0243349 A1MINEBEA MITSUMI Inc.
- Combined type sealing ring of hub bearing and machining method thereof11 Jun 2026US 2026/0160299 A1C&U Company Limited.
- Sliding component11 Jun 2026US 2026/0160336 A1Eagle Industry Co., Ltd.
- Method for producing sealing device23 Apr 2026US 2026/0110331 A1Uchiyama Manufacturing Corp.
Most cited
By later US patents
- Idler roller bearing and seal67US 5,028,054 AFMC Corporation · 1991
- Unitized seal with unitizing joint remote from seal lip65US 5,004,248 AGarlock Inc. · 1991
- End effector of a surgical robotic manipulator54US 9,566,121 B2Stryker Corporation · 2017
- Unitized grit seal with removable thrust bumper53US 5,183,269 AChicago Rawhide Manufacturing Company · 1993
- Sealing device53US 5,201,529 ANok Corporation · 1993