F16J 15/181
For plastic packings
Official title: {for plastic packings}
F16J15/181 (For plastic packings) appears on 41 US grants and 49 published applications in this corpus.
Search patents in F16J- Granted patents
- 41
- Published applications
- 49
- Assignees
- 27
- Inventors
- 91
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 2 |
| 2014 | 1 | 1 |
| 2015 | 4 | 10 |
| 2016 | 6 | 4 |
| 2017 | 3 | 1 |
| 2018 | 3 | 3 |
| 2019 | 2 | 1 |
| 2020 | 0 | 2 |
| 2021 | 0 | 1 |
| 2022 | 2 | 3 |
| 2023 | 1 | 4 |
| 2024 | 5 | 4 |
| 2025 | 4 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Solid plate and stuffing box comprising the solid plate7 Apr 2026US 12,595,848 B2Haarslev Industries A/S
- Seal ring27 Jan 2026US 12,535,138 B2Nok Corporation
- Sealing device for a piston rod of a reciprocating compressor15 Jul 2025US 12,359,723 B2Hoerbiger Wien GmbH
- Sealing device for a piston rod of a reciprocating compressor10 Jun 2025US 12,326,140 B2Hoerbiger Wien GmbH
- Solid plate and stuffing box comprising the solid plate21 Jan 2025US 12,203,550 B2Haarslev Industries A/S
- Wiper ring for reciprocating compressor rod packing28 May 2026US 2026/0146594 A1Compressor Products International LLC (Cpi)
- V-packing utilizing polyarylether ketone seal elements30 Apr 2026US 2026/0117871 A1Weatherford Technology Holdings, LLC
- Solid plate and stuffing box comprising the solid plate27 Feb 2025US 2025/0067342 A1Haarslev Industries A/S
- Hydraulic cylinder buffer seal backup ring6 Feb 2025US 2025/0043807 A1Caterpillar Inc.
- Waterless Gland Assembly for Rotating Equipment31 Oct 2024US 2024/0360836 A1
Most cited
By later US patents
- Dual ring stuffing box49US 11,391,374 B1Vulcan Industrial Holdings, LLC · 2022
- Packing gland assembly33US 4,364,542 AACF Industries, Incorporated · 1982
- Packing gland assembly27US 4,177,998 AACF Industries, Incorporated · 1979
- Moveable seal point packing system19US 12,038,086 B2SPM Oil & Gas Inc. · 2024
- Seal ring17US 10,190,689 B2Nok Corporation · 2019