F16J 15/16
Between relatively-moving surfaces
Official title: between relatively-moving surfaces (F16J15/50, F16J15/52 take precedence; bellows pistons F16J3/06; piston-rings or ring sealings of similar construction F16J9/00)
F16J15/16 (Between relatively-moving surfaces) appears on 9,025 US grants and 6,985 published applications in this corpus.
Search patents in F16J- Granted patents
- 9,025
- Published applications
- 6,985
- Assignees
- 2,866
- Inventors
- 13,757
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 138 | 0 |
| 1977 | 110 | 0 |
| 1978 | 172 | 0 |
| 1979 | 116 | 0 |
| 1980 | 161 | 0 |
| 1981 | 168 | 0 |
| 1982 | 125 | 0 |
| 1983 | 138 | 0 |
| 1984 | 188 | 0 |
| 1985 | 182 | 0 |
| 1986 | 151 | 0 |
| 1987 | 126 | 0 |
| 1988 | 137 | 0 |
| 1989 | 182 | 0 |
| 1990 | 126 | 0 |
| 1991 | 169 | 0 |
| 1992 | 154 | 0 |
| 1993 | 123 | 0 |
| 1994 | 127 | 0 |
| 1995 | 94 | 0 |
| 1996 | 130 | 0 |
| 1997 | 102 | 0 |
| 1998 | 120 | 0 |
| 1999 | 120 | 0 |
| 2000 | 139 | 0 |
| 2001 | 177 | 37 |
| 2002 | 157 | 140 |
| 2003 | 151 | 199 |
| 2004 | 133 | 219 |
| 2005 | 114 | 203 |
| 2006 | 136 | 165 |
| 2007 | 94 | 231 |
| 2008 | 101 | 229 |
| 2009 | 64 | 226 |
| 2010 | 136 | 285 |
| 2011 | 153 | 237 |
| 2012 | 185 | 237 |
| 2013 | 177 | 261 |
| 2014 | 195 | 293 |
| 2015 | 217 | 340 |
| 2016 | 243 | 384 |
| 2017 | 308 | 362 |
| 2018 | 289 | 379 |
| 2019 | 397 | 397 |
| 2020 | 328 | 424 |
| 2021 | 339 | 379 |
| 2022 | 322 | 366 |
| 2023 | 333 | 280 |
| 2024 | 306 | 291 |
| 2025 | 280 | 229 |
| 2026 | 192 | 192 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16J 15/32With elastic sealings4,624
- F16J 15/34With slip-ring pressed against a more or less radial face on one2,687
- F16J 15/40By means of fluid1,024
- F16J 15/18With stuffing-boxes for elastic or plastic packings820
- F16J 15/164The sealing action depending on movements793
- F16J 15/166With means to prevent the extrusion of the packing292
- F16J 15/26With stuffing-boxes for rigid sealing rings260
- F16J 15/162Special parts or details relating to lubrication or cooling of the sealing250
All 9 subgroupsShow fewer
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.
- Mechanical seal arrangement6 Oct 2026US 12,753,839 B2Eagleburgmann Germany GmbH & Co.KG
- Lip seals and related methods29 Sep 2026US 12,747,791 B2Bal Seal Engineering, Inc.
- Adjustable high pressure packing assembly8 Oct 2026US 2026/0309229 A1Third Coast Innovation LLC
- Sealing device8 Oct 2026US 2026/0309230 A1Nok Corporation
- Maintenance hole connection seal8 Oct 2026US 2026/0309231 A1S & B Technical Products, Inc.
- Clutch assembly for utility terrain vehicles8 Oct 2026US 2026/0309232 A1
- Seal structure, rotary table device, and machine tool8 Oct 2026US 2026/0309233 A1Fanuc Corporation
Most cited
By later US patents
- Seals and sealing methods for a surgical instrument having an articulated end effector actuated by a drive shaft1,584US 9,216,062 B2Intuitive Surgical Operations, Inc. · 2015
- Cardiac assist pump with steady rate supply of fluid lubricant443US 4,927,407 ARegents of the University of Minnesota · 1990
- Bearing with multiple lip seal401US 3,955,859 AThe Torrington Company · 1976
- Seal for relatively rotatable parts286US 4,494,759 A1985
- Valve assembly for introducing instruments into body cavities276US 5,360,417 AUnited States Surgical Corporation · 1994