F16L 51/02
Making use of a bellows or an expansible folded or corrugated tube
Official title: making use of a bellows or an expansible folded or corrugated tube
F16L51/02 (Making use of a bellows or an expansible folded or corrugated tube) appears on 289 US grants and 221 published applications in this corpus.
Search patents in F16L- Granted patents
- 289
- Published applications
- 221
- Assignees
- 200
- Inventors
- 589
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 6 | 0 |
| 1981 | 8 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 4 | 0 |
| 2000 | 11 | 0 |
| 2001 | 5 | 2 |
| 2002 | 3 | 2 |
| 2003 | 5 | 3 |
| 2004 | 2 | 2 |
| 2005 | 3 | 3 |
| 2006 | 4 | 4 |
| 2007 | 1 | 5 |
| 2008 | 0 | 4 |
| 2009 | 5 | 8 |
| 2010 | 6 | 10 |
| 2011 | 1 | 6 |
| 2012 | 3 | 9 |
| 2013 | 7 | 16 |
| 2014 | 6 | 11 |
| 2015 | 12 | 11 |
| 2016 | 8 | 15 |
| 2017 | 13 | 12 |
| 2018 | 13 | 21 |
| 2019 | 16 | 16 |
| 2020 | 14 | 14 |
| 2021 | 12 | 6 |
| 2022 | 11 | 9 |
| 2023 | 8 | 14 |
| 2024 | 6 | 9 |
| 2025 | 11 | 3 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Vacuum-insulated double-wall piping for transporting cryogenic fluid9 Jun 2026US 12,650,197 B2Tb Global Technologies Ltd.
- Aircraft assembly2 Jun 2026US 12,643,672 B2Airbus Operations GmbH
- Expansion joint with arch geometry3 Feb 2026US 12,540,701 B2Garlock Sealing Technologies, LLC
- Heat insulation pipe13 Jan 2026US 12,523,334 B2Honda Motor Co., Ltd.
- System and method for equalizing pressure in ionization chamber of radiation device6 Jan 2026US 12,516,765 B2Shanghai United Imaging Healthcare Co., Ltd.
- Pipe for the transfer of cryogenic fluid10 Sep 2026US 2026/0266409 A1L' Air Liquide, Societe Anonyme pour I' Etude et I'Exploitation des Procedes Georges Claude
- Low emission expansion joint assembly20 Aug 2026US 2026/0243385 A1Eagleburgmann Germany GmbH & Co.KG
- Ball joint for the piping of an engine, and associated piping and aircraft25 Jun 2026US 2026/0177173 A1
- Bellows joint fitting, method for treatment of process exhaust effluent, and processing apparatus25 Jun 2026US 2026/0177181 A1ASM IP Holding B. V.
- Curved pipe segment for transporting a cryogenic fluid, associated arrangement and aircraft11 Jun 2026US 2026/0160372 A1Airbus Operations GmbH
Most cited
By later US patents
- Bellows sealed ball joint124US 5,286,071 AGeneral Electric Company · 1994
- Tuyere stock and compensator joint therefore118US 4,023,782 AS. A. des Anciens Etablissements Paul Wurth · 1977
- Expansion compensator for pipelines76US 4,045,056 A1977
- 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