F16L 27/111
The bellows being reinforced
Official title: the bellows being reinforced
F16L27/111 (The bellows being reinforced) appears on 119 US grants and 94 published applications in this corpus.
Search patents in F16L- Granted patents
- 119
- Published applications
- 94
- Assignees
- 86
- Inventors
- 237
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 0 |
| 2002 | 3 | 0 |
| 2003 | 3 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 2 | 3 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 1 |
| 2011 | 2 | 2 |
| 2012 | 0 | 6 |
| 2013 | 2 | 7 |
| 2014 | 4 | 5 |
| 2015 | 6 | 5 |
| 2016 | 3 | 10 |
| 2017 | 4 | 5 |
| 2018 | 7 | 12 |
| 2019 | 6 | 7 |
| 2020 | 8 | 13 |
| 2021 | 9 | 5 |
| 2022 | 7 | 3 |
| 2023 | 3 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gimbals and their manufacture5 May 2026US 12,618,499 B2ROLLS-ROYCE plc
- Damper segment for pressurized gas pipe of aircraft engine7 Jan 2025US 12,188,364 B2Pratt & Whitney Canada Corp.
- Hose and rigid pipe connecting system used in high pressure system20 Feb 2024US 11,906,088 B2Shanghai Zhongyuan Fuel Rail Manufacture Co., Ltd
- Conduits for transporting fluids and methods of fabricating the same5 Dec 2023US 11,835,156 B2The Boeing Company
- Expansion pipe joint and incineration ash treatment facility2 May 2023US 11,639,763 B2Kawasaki Jukogyo Kabushiki Kaisha
- Dissolvable bellows restraint for flexible pipe joint23 Jul 2026US 2026/0210465 A1Oil States Industries, Inc.
- Flexible pipe connector and manufacturing method therefor4 Dec 2025US 2025/0369543 A1Dong-A Flexible Metal Tubes Co., Ltd.
- Mitigation of vibration in pipe systems2 Oct 2025US 2025/0305608 A1The Boeing Company
- Damper segment for pressurized gas pipe of aircraft engine11 Jan 2024US 2024/0011415 A1Pratt & Whitney Canada Corp.
- Hose and rigid pipe connecting system used in high pressure system6 Oct 2022US 2022/0316635 A1Shanghai Zhongyuan Fuel Rail Manufacture Co., Ltd
Most cited
By later US patents
- Flexible connector154US 5,340,165 ASenior Engineering Investments AG · 1994
- Flexible conduit construction and method of making the same131US 4,243,253 ARobertshaw Controls Company · 1981
- Flexible coupler apparatus66US 5,145,215 ASenior Engineering Investments AG · 1992
- Flexible tube with mutually parallel, ring-shaped flutes and axial support64US 4,791,963 AWitzenmann GmbH Metallschlauch-Fabrik Pforzheim · 1988
- Tuned self-damping convoluted conduit63US 4,854,416 ATiteflex Corporation · 1989