F16J 15/3204
With at least one lip
Official title: with at least one lip
F16J15/3204 (With at least one lip) appears on 2,099 US grants and 1,997 published applications in this corpus.
Search patents in F16J- Granted patents
- 2,099
- Published applications
- 1,997
- Assignees
- 902
- Inventors
- 3,819
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 23 | 0 |
| 1977 | 20 | 0 |
| 1978 | 32 | 0 |
| 1979 | 27 | 0 |
| 1980 | 19 | 0 |
| 1981 | 33 | 0 |
| 1982 | 24 | 0 |
| 1983 | 16 | 0 |
| 1984 | 25 | 0 |
| 1985 | 36 | 0 |
| 1986 | 37 | 0 |
| 1987 | 22 | 0 |
| 1988 | 20 | 0 |
| 1989 | 30 | 0 |
| 1990 | 21 | 0 |
| 1991 | 23 | 0 |
| 1992 | 36 | 0 |
| 1993 | 25 | 0 |
| 1994 | 22 | 0 |
| 1995 | 15 | 0 |
| 1996 | 17 | 0 |
| 1997 | 12 | 0 |
| 1998 | 18 | 0 |
| 1999 | 29 | 0 |
| 2000 | 29 | 0 |
| 2001 | 29 | 8 |
| 2002 | 29 | 36 |
| 2003 | 37 | 42 |
| 2004 | 29 | 47 |
| 2005 | 23 | 48 |
| 2006 | 29 | 44 |
| 2007 | 17 | 51 |
| 2008 | 23 | 58 |
| 2009 | 16 | 62 |
| 2010 | 38 | 70 |
| 2011 | 35 | 56 |
| 2012 | 41 | 62 |
| 2013 | 45 | 71 |
| 2014 | 48 | 82 |
| 2015 | 65 | 92 |
| 2016 | 69 | 110 |
| 2017 | 80 | 110 |
| 2018 | 84 | 118 |
| 2019 | 114 | 123 |
| 2020 | 100 | 122 |
| 2021 | 79 | 131 |
| 2022 | 88 | 117 |
| 2023 | 114 | 99 |
| 2024 | 103 | 96 |
| 2025 | 91 | 73 |
| 2026 | 62 | 69 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16J 15/3232Having two or more lips1,015
- F16J 15/3208Provided with tension elements502
- F16J 15/3224Capable of accommodating changes in distances or misalignment between the surfaces222
- F16J 15/3228Formed by deforming a flat ring208
- F16J 15/322Supported in a direction perpendicular to the surfaces151
- F16J 15/3216Supported in a direction parallel to the surfaces139
Recent patents
- Work machine6 Oct 2026US 12,752,408 B2Koki Holdings Co., Ltd.
- Sealing device6 Oct 2026US 12,753,837 B2Schaeffler Technologies AG & Co. KG
- Tiltable floating lip seal6 Oct 2026US 12,753,838 B2Flowserve Pte. Ltd.
- Lip seals and related methods29 Sep 2026US 12,747,791 B2Bal Seal Engineering, Inc.
- Hanger seal for low temperature applications15 Sep 2026US 12,736,136 B2Cameron International Corporation
- Sealing device8 Oct 2026US 2026/0309230 A1Nok Corporation
- Maintenance hole connection seal8 Oct 2026US 2026/0309231 A1S & B Technical Products, Inc.
- Seal structure, rotary table device, and machine tool8 Oct 2026US 2026/0309233 A1Fanuc Corporation
- Seal, assembly using the same, and method of installation1 Oct 2026US 2026/0298102 A1Rtx Corporation
- Chain pin seal for a chain to be used in conveyor and/or drive technology24 Sep 2026US 2026/0287059 A1Carl Freudenberg KG
Most cited
By later US patents
- Bearing with multiple lip seal401US 3,955,859 AThe Torrington Company · 1976
- Seal for relatively rotatable parts286US 4,494,759 A1985
- Canted coiled spring and seal196US 4,655,462 A1987
- Centrifugal blood pump and magnetic coupling141US 5,017,103 ASt. Jude Medical, Inc. · 1991
- Well tool having a metal seal and bi-directional lock123US 4,588,030 ACamco, Incorporated · 1986