F16J 15/3244
With hydrodynamic pumping action
Official title: with hydrodynamic pumping action
F16J15/3244 (With hydrodynamic pumping action) appears on 340 US grants and 295 published applications in this corpus.
Search patents in F16J- Granted patents
- 340
- Published applications
- 295
- Assignees
- 119
- Inventors
- 537
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 1 | 0 |
| 1978 | 7 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 7 | 0 |
| 1985 | 8 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 9 | 0 |
| 1989 | 9 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 8 | 3 |
| 2002 | 11 | 8 |
| 2003 | 6 | 9 |
| 2004 | 10 | 7 |
| 2005 | 6 | 11 |
| 2006 | 4 | 10 |
| 2007 | 3 | 17 |
| 2008 | 2 | 8 |
| 2009 | 4 | 9 |
| 2010 | 10 | 13 |
| 2011 | 12 | 19 |
| 2012 | 6 | 7 |
| 2013 | 18 | 16 |
| 2014 | 5 | 16 |
| 2015 | 15 | 18 |
| 2016 | 11 | 12 |
| 2017 | 17 | 7 |
| 2018 | 4 | 23 |
| 2019 | 13 | 10 |
| 2020 | 14 | 18 |
| 2021 | 10 | 14 |
| 2022 | 13 | 11 |
| 2023 | 14 | 7 |
| 2024 | 3 | 9 |
| 2025 | 2 | 6 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Shaft sealing ring and shaft arrangement for high rotational speeds11 Aug 2026US 12,704,180 B2Trelleborg Sealing Solutions Germany GmbH
- Sealing device16 Jun 2026US 12,655,906 B2Nok Corporation
- Sealing device and manufacturing method therefor26 May 2026US 12,638,081 B2Schaeffler Technologies AG & Co. KG
- Bearing assembly5 May 2026US 12,618,440 B2Aktiebolaget Skf
- Dirt ingress seal5 May 2026US 12,618,450 B2Carl Freudenberg KG
- Sealing device8 Oct 2026US 2026/0309230 A1Nok Corporation
- Lubricant Pumping Seal13 Aug 2026US 2026/0235207 A1System Seals, Inc.
- Sliding component11 Jun 2026US 2026/0160336 A1Eagle Industry Co., Ltd.
- Sealing device26 Mar 2026US 2026/0085754 A1Nok Corporation
- Ptfe shaft seal and method of making12 Mar 2026US 2026/0071679 A1Federal-Mogul Powertrain LLC
Most cited
By later US patents
- Hydrodynamic lubricant seal for drill bits94US 4,610,319 A1986
- Compliant finer seal92US 5,100,158 AEG&G Sealol, Inc. · 1992
- Hydrodynamically lubricated rotary shaft seal with environmental side groove81US 5,678,829 AKalsi Engineering, Inc. · 1997
- Skew and twist resistant hydrodynamic rotary shaft seal80US 5,873,576 AKalsi Engineering, Inc. · 1999
- Rotary seal with enhanced lubrication and contaminant flushing67US 6,109,618 AKalsi Engineering, Inc. · 2000