F16J 15/186
Using springs
Official title: {using springs}
F16J15/186 (Using springs) appears on 93 US grants and 55 published applications in this corpus.
Search patents in F16J- Granted patents
- 93
- Published applications
- 55
- Assignees
- 70
- Inventors
- 164
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 3 |
| 2004 | 1 | 0 |
| 2005 | 0 | 3 |
| 2006 | 2 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 2 | 0 |
| 2010 | 0 | 5 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 4 | 3 |
| 2014 | 2 | 2 |
| 2015 | 2 | 3 |
| 2016 | 4 | 1 |
| 2017 | 2 | 3 |
| 2018 | 0 | 2 |
| 2019 | 4 | 2 |
| 2020 | 0 | 5 |
| 2021 | 4 | 1 |
| 2022 | 0 | 4 |
| 2023 | 8 | 4 |
| 2024 | 3 | 4 |
| 2025 | 3 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cartridge sealing device with semi-solid mud filler and configured to be mounted to fluid equipment26 May 2026US 12,638,083 B2AIGI Environmental Inc.
- Seal arrangement28 Oct 2025US 12,455,010 B2Schaeffler Technologies AG & Co. KG
- Valve packing apparatus and related methods15 Jul 2025US 12,359,747 B2Fisher Controls International LLC
- Control valve unit1 Jul 2025US 12,345,356 B2Samson Aktiengesellschaft
- Stuffing box with pressurized fluid chamber and related methods31 Dec 2024US 12,180,799 B2Oil Lift Technology Inc.
- A valve with a spring30 Jul 2026US 2026/0218811 A1Valmet Flow Control Oy
- Cartridge sealing device with semi-solid mud filler and configured to be mounted to fluid equipment30 Apr 2026US 2026/0117873 A1AIGI Environmental Inc.
- Seal for reciprocating pump6 Nov 2025US 2025/0341210 A1Peroni Pompe S.P.A.
- Seal arrangement17 Apr 2025US 2025/0122935 A1Schaeffler Technologies AG & Co. KG
- Spring-loaded gland wall seal carrier for reverse acting differential pressure5 Dec 2024US 2024/0401700 A1Kalsi Engineering, Inc.
Most cited
By later US patents
- Rotary shaft seal82US 4,484,753 ANL Industries, Inc. · 1984
- Valve stem packing structure79US 5,056,758 A1991
- Zero clearance anti-extrusion rings for containment of PTFE packing77US 5,131,666 AFisher Controls International LLC · 1992
- Live load packing system62US 5,230,498 AFisher Controls International LLC · 1993
- Liveload assembly for maintaining torque on bolts58US 5,316,319 ARM Engineered Products, Inc. · 1994