B29L 2023/186
Having a smooth internal wall
Official title: {having a smooth internal wall}
B29L2023/186 (Having a smooth internal wall) appears on 68 US grants and 43 published applications in this corpus.
Search patents in B29L- Granted patents
- 68
- Published applications
- 43
- Assignees
- 33
- Inventors
- 76
- Latest grant
- 9 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 3 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 4 |
| 2008 | 2 | 2 |
| 2009 | 2 | 6 |
| 2010 | 4 | 9 |
| 2011 | 3 | 2 |
| 2012 | 2 | 1 |
| 2013 | 4 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 0 |
| 2016 | 1 | 3 |
| 2017 | 2 | 1 |
| 2018 | 1 | 1 |
| 2019 | 2 | 1 |
| 2020 | 2 | 0 |
| 2021 | 1 | 2 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and machine for producing a single-walled or multi-walled tubular thermoplastic body9 Apr 2024US 11,951,669 B2
- Method for forming inline triple wall coupling connector15 Jun 2021US 11,034,073 B2
- Medical devices and methods for producing the same1 Dec 2020US 10,850,442 B1Restor3D, Inc.
- Process and apparatus to injection mold continuous lengths of hollow plastic articles18 Feb 2020US 10,562,212 B2
- Methods and assemblies for welding a gasket to a pipe section2 Apr 2019US 10,247,334 B2Advanced Drainage Systems, Inc.
- Helically wound pipe and related method14 Jul 2022US 2022/0221087 A1Contech Engineered Solutions LLC
- Apparatus for forming a protecting duct with integrated inner and outer walls, and the duct formed thereby9 Sep 2021US 2021/0276236 A1Iteco Ltd.
- Method and machine for producing a single-walled or multi-walled tubular thermoplastic body7 Jan 2021US 2021/0001533 A1
- Method and apparatus for producing a corrugated tube6 Jun 2019US 2019/0168437 A1Dr. Ing. h,c.F. Porsche Aktiengesellschaft
- Process and apparatus to injection mold continuous lengths of hollow plastic articles5 Jul 2018US 2018/0186045 A1
Most cited
By later US patents
- Composite flexible conduit assembly84US 5,143,122 ABundy Corporation · 1992
- Method for producing a double wall pipe50US 5,124,109 AContech Construction Products Inc. · 1992
- Hose construction and apparatus for and method of making same47US 4,312,383 ADayco Corporation · 1982
- Medical devices and methods for producing the same46US 10,183,442 B1Additive Device, Inc. · 2019
- Method of producing double-walled synthetic plastics tubes having an outer wall with annular or helical corrugations37US 3,996,323 A1976