B29C 44/324
The preformed parts being tubular or folded to a tubular shape
Official title: {the preformed parts being tubular or folded to a tubular shape}
B29C44/324 (The preformed parts being tubular or folded to a tubular shape) appears on 55 US grants and 38 published applications in this corpus.
Search patents in B29C- Granted patents
- 55
- Published applications
- 38
- Assignees
- 40
- Inventors
- 110
- Latest grant
- 4 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 2 | 2 |
| 2013 | 1 | 0 |
| 2014 | 2 | 5 |
| 2015 | 0 | 2 |
| 2016 | 1 | 2 |
| 2017 | 1 | 3 |
| 2018 | 3 | 5 |
| 2019 | 6 | 2 |
| 2020 | 3 | 2 |
| 2021 | 2 | 0 |
| 2022 | 1 | 2 |
| 2023 | 0 | 0 |
| 2024 | 2 | 0 |
| 2025 | 0 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and apparatus for producing a tubular sealing element4 Jun 2024US 12,000,138 B2Hilti Aktiengesellschaft
- Insulated pipe containing polyurethane foam which is foamed by an environmentally friendly foaming agent and has a low degree of brittleness14 May 2024US 11,982,395 B2BASF SE
- Process and apparatus for producing shaped profile sections8 Nov 2022US 11,491,689 B2Kingspan Holdings (IRL) Limited
- Method and device for producing a profiled element21 Sep 2021US 11,123,971 B2Hilti Aktiengesellschaft
- Push-in earplug6 Apr 2021US 10,966,867 B23M Innovative Properties Company
- Tube production, pre-insulated tubular rods4 Sep 2025US 2025/0276480 A1
- Process for manufacturing copper conduits for air conditioning systems with improved anti-corrosive performance17 Apr 2025US 2025/0122970 A1Ebrille S.R.L.
- Process and apparatus for making insulated pipe6 Mar 2025US 2025/0073974 A1Set Ehf
- Method and apparatus for producing a tubular sealing element16 Jun 2022US 2022/0186490 A1Hilti Aktiengesellschaft
- Insulated pipe containing polyurethane foam which is foamed by an environmentally friendly foaming agent and has a low degree of brittleness26 May 2022US 2022/0163162 A1BASF SE
Most cited
By later US patents
- Wire reinforced hose and method44US 4,380,252 AThe Gates Rubber Company · 1983
- Thermally insulated tubing40US 4,307,756 AKabel-und Metallwerke Gutehoffnungshuette AG · 1981
- Heat-insulating tubing39US 4,531,991 AKabel-und Metallwerke Gutehoffnungshuette AG · 1985
- Method of producing a composite foam wire reinforced hose28US 4,447,378 AThe Gates Rubber Company · 1984
- Method in manufacturing a heat insulated tube and a device in extruders for manufacturing the tube28US 4,929,409 AUponor N.V. · 1990