F16J 15/442
Segmented
Official title: {segmented}
F16J15/442 (Segmented) appears on 306 US grants and 306 published applications in this corpus.
Search patents in F16J- Granted patents
- 306
- Published applications
- 306
- Assignees
- 74
- Inventors
- 453
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 10 | 0 |
| 2001 | 7 | 1 |
| 2002 | 9 | 8 |
| 2003 | 9 | 8 |
| 2004 | 5 | 8 |
| 2005 | 5 | 5 |
| 2006 | 3 | 7 |
| 2007 | 5 | 17 |
| 2008 | 4 | 10 |
| 2009 | 3 | 3 |
| 2010 | 11 | 5 |
| 2011 | 7 | 8 |
| 2012 | 8 | 10 |
| 2013 | 3 | 8 |
| 2014 | 9 | 7 |
| 2015 | 7 | 11 |
| 2016 | 8 | 23 |
| 2017 | 8 | 20 |
| 2018 | 19 | 24 |
| 2019 | 21 | 25 |
| 2020 | 33 | 36 |
| 2021 | 28 | 17 |
| 2022 | 24 | 19 |
| 2023 | 17 | 11 |
| 2024 | 12 | 5 |
| 2025 | 8 | 4 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Labyrinth seal arrangement7 Apr 2026US 12,595,851 B2Martin GmbH fur Umwelt- und Energietechnik
- Circumferential sealing assembly with duct-fed hydrodynamic grooves31 Mar 2026US 12,590,638 B2Stein Seal Company
- Serviceable propeller shaft zero air gap seal6 Jan 2026US 12,516,609 B2Pratt & Whitney Canada Corp.
- Non-contact seal shoe with diffuser structure23 Dec 2025US 12,503,950 B2Rtx Corporation
- Seal assembly mating plate for aircraft powerplant21 Oct 2025US 12,448,904 B1Pratt & Whitney Canada Corp.
- Seal device24 Sep 2026US 2026/0287062 A1Mitsubishi Heavy Industries, Ltd.
- Hydrostatic annular seal10 Sep 2026US 2026/0266188 A1Safran Aircraft Engines
- Circumferential Sealing Assembly with Duct-Fed Hydrodynamic Grooves9 Jul 2026US 2026/0194144 A1Stein Seal Company
- Carbon Radial Seal4 Jun 2026US 2026/0153056 A1Rtx Corporation
- Pressure activated non-contact seals and seal assemblies28 May 2026US 2026/0146672 A1
Most cited
By later US patents
- Thermal seal for a gas turbine spacer disc1,527US 5,080,556 AGeneral Electric Company · 1992
- Hydrodynamic lift seal for use with compressible fluids90US 6,145,843 AStein Seal Company · 2000
- Non-contact seal for a gas turbine engine79US 8,002,285 B22011
- High-pressure film-riding seals for rotating shafts76US 6,692,006 B2Stein Seal Company · 2004
- Brush seals and combined labyrinth and brush seals for rotary machines73US 6,131,910 AGeneral Electric Company · 2000