F16L 55/033
Noise absorbers
Official title: Noise absorbers (F16L55/027 takes precedence)
F16L55/033 (Noise absorbers) appears on 639 US grants and 591 published applications in this corpus.
Search patents in F16L- Granted patents
- 639
- Published applications
- 591
- Assignees
- 457
- Inventors
- 1,493
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 6 | 0 |
| 1980 | 13 | 0 |
| 1981 | 6 | 0 |
| 1982 | 9 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 9 | 0 |
| 1990 | 4 | 0 |
| 1991 | 11 | 0 |
| 1992 | 9 | 0 |
| 1993 | 16 | 0 |
| 1994 | 5 | 0 |
| 1995 | 8 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 11 | 0 |
| 2000 | 8 | 0 |
| 2001 | 12 | 2 |
| 2002 | 10 | 17 |
| 2003 | 15 | 12 |
| 2004 | 10 | 11 |
| 2005 | 7 | 17 |
| 2006 | 10 | 15 |
| 2007 | 12 | 18 |
| 2008 | 7 | 19 |
| 2009 | 13 | 25 |
| 2010 | 15 | 27 |
| 2011 | 12 | 18 |
| 2012 | 26 | 23 |
| 2013 | 15 | 25 |
| 2014 | 23 | 30 |
| 2015 | 30 | 35 |
| 2016 | 32 | 40 |
| 2017 | 29 | 28 |
| 2018 | 25 | 37 |
| 2019 | 36 | 35 |
| 2020 | 28 | 35 |
| 2021 | 19 | 21 |
| 2022 | 26 | 23 |
| 2023 | 20 | 24 |
| 2024 | 18 | 15 |
| 2025 | 14 | 23 |
| 2026 | 8 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16L 55/035In the form of specially adapted hangers or supports306
- F16L 55/0336By means of sound-absorbing materials78
- F16L 55/0331By inserting an elongated element in the pipe43
- F16L 55/0333By means of an active system41
- F16L 55/0335By means of external rings31
- F16L 55/0332By inserting a body of compressible material in the pipe28
- F16L 55/0337By means of a flexible connection24
- F16L 55/0338By means of a membrane17
Recent patents
- Noise reduction for air flow devices1 Sep 2026US 12,723,696 B2Dyson Technology Limited
- Ventilation device for a ventilation, heating and/or air conditioning system of a motor vehicle24 Mar 2026US 12,583,284 B2Valeo Systemes Thermiques
- Pipe support member3 Mar 2026US 12,565,946 B2Inaba Denki Sangyo Co., Ltd.
- Motion pillow24 Feb 2026US 12,557,927 B2Tenminds Co., Ltd.
- Line clamp24 Feb 2026US 12,560,187 B2Hy-Tek Manufacturing Company, Inc.
- Fluid transport system temperature conditioning system lithographic apparatus and flexible hose13 Aug 2026US 2026/0235246 A1ASML Netherlands B. V.
- Fluid piping6 Aug 2026US 2026/0227020 A1Nissan Motor Co., Ltd.
- Lithographic apparatus thermal conditioning system and method16 Jul 2026US 2026/0202767 A1ASML Netherlands B. V.
- Height-adjustable conduit clip9 Jul 2026US 2026/0194165 A1GM Global Technology Operations LLC
- Muffler assemblies for climate control systems9 Jul 2026US 2026/0194277 A1Trane International Inc.
Most cited
By later US patents
- Clip arrangement for releasably fastening an object to at least one line143US 6,641,093 B2Newfrey LLC · 2003
- Acoustic abatement method and apparatus119US 3,936,606 A1976
- Vibration-damping holding element for pipelines95US 5,257,768 AThe Raymond Corporation · 1993
- Laterally adjustable clamp91US 6,732,982 B1Bell Helicopter Textron Inc. · 2004
- Plastic holding element88US 4,881,705 ATRW United Carr GmbH & Co. KG · 1989