F16L 21/025
Rolling sealing rings
F16L21/025 (Rolling sealing rings) appears on 19 US grants and 10 published applications in this corpus.
Search patents in F16L- Granted patents
- 19
- Published applications
- 10
- Assignees
- 17
- Inventors
- 32
- Latest grant
- 19 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 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 2 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pipe coupling gasket19 May 2026US 12,631,270 B2Tyco Fire Products LP
- Connection system for fluid conduction7 Jan 2025US 12,188,596 B2J. Juan, S.A.
- Vacuum chamber connector2 Jul 2024US 12,025,246 B2Thermo Fisher Scientific (Bremen) GmbH
- Fluid coupling29 Sep 2020US 10,788,149 B2Self-Energising Coupling Company Limited
- Pipe adapter device5 Dec 2017US 9,835,274 B2
- O-ring gland fittings for liquid cooling with o-ring compression seal having redundant non-radial seal pairs30 Oct 2025US 2025/0338437 A1Hewlett Packard Enterprise Development LP
- Connection system for fluid conduction14 Mar 2024US 2024/0084938 A1J. Juan, S.A.
- Pipe coupling gasket25 May 2023US 2023/0160508 A1Tyco Fire Products LP
- Vacuum chamber connector16 Mar 2023US 2023/0078069 A1Thermo Fisher Scientific (Bremen) GmbH
- Improved fluid coupling6 Dec 2018US 2018/0347733 A1Self-Energising Coupling Company Limited
Most cited
By later US patents
- Bathroom fixture gasket apparatus and method69US 6,719,294 B2Fluidmaster, Inc. · 2004
- Connecting device29US 4,993,756 ACaoutchouc Manufacture et Plastiques · 1991
- Method of making pipe-joint gasket17US 4,756,784 AUnited States Pipe and Foundry Company · 1988
- Reinforced plastic pipe16US 4,050,721 APhone-Ducs, Inc. · 1977
- Control valves15US 4,285,498 AImperial Chemical Industries PLC · 1981