B29C 48/13
Articles with a cross-section varying in the longitudinal direction
Official title: Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
B29C48/13 (Articles with a cross-section varying in the longitudinal direction) appears on 1,149 US grants and 761 published applications in this corpus.
Search patents in B29C- Granted patents
- 1,149
- Published applications
- 761
- Assignees
- 648
- Inventors
- 1,810
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 33 | 0 |
| 1977 | 20 | 0 |
| 1978 | 27 | 0 |
| 1979 | 18 | 0 |
| 1980 | 24 | 0 |
| 1981 | 23 | 0 |
| 1982 | 22 | 0 |
| 1983 | 14 | 0 |
| 1984 | 15 | 0 |
| 1985 | 17 | 0 |
| 1986 | 14 | 0 |
| 1987 | 16 | 0 |
| 1988 | 21 | 0 |
| 1989 | 18 | 0 |
| 1990 | 15 | 0 |
| 1991 | 17 | 0 |
| 1992 | 27 | 0 |
| 1993 | 21 | 0 |
| 1994 | 22 | 0 |
| 1995 | 31 | 0 |
| 1996 | 36 | 0 |
| 1997 | 35 | 0 |
| 1998 | 50 | 0 |
| 1999 | 31 | 0 |
| 2000 | 35 | 0 |
| 2001 | 33 | 12 |
| 2002 | 31 | 35 |
| 2003 | 25 | 44 |
| 2004 | 25 | 60 |
| 2005 | 17 | 42 |
| 2006 | 29 | 47 |
| 2007 | 25 | 41 |
| 2008 | 14 | 47 |
| 2009 | 21 | 52 |
| 2010 | 24 | 44 |
| 2011 | 27 | 36 |
| 2012 | 26 | 41 |
| 2013 | 23 | 33 |
| 2014 | 34 | 28 |
| 2015 | 25 | 19 |
| 2016 | 16 | 24 |
| 2017 | 26 | 24 |
| 2018 | 17 | 23 |
| 2019 | 20 | 19 |
| 2020 | 21 | 26 |
| 2021 | 20 | 22 |
| 2022 | 13 | 9 |
| 2023 | 12 | 8 |
| 2024 | 10 | 8 |
| 2025 | 9 | 10 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Snowmobile11 Aug 2026US 12,703,444 B2Polaris Industries Inc.
- Textured core sheets for fluid drainage unit2 Jun 2026US 12,643,274 B2Eljen Corporation
- Apparatus for manufacturing zipper for bag and method of manufacturing zipper for bag31 Mar 2026US 12,589,541 B2DongbangLED Co., Ltd.
- System and method for mold block exchange on return track27 Jan 2026US 12,533,831 B2
- Fully bonded single-layer waterbar30 Dec 2025US 12,509,879 B2Sika Technology AG
- High Density Polyethylene and Basalt Powder Composition and Methods Related Thereto17 Sep 2026US 2026/0276110 A1
- Method and apparatus for obtaining doses for forming an annular seal10 Sep 2026US 2026/0264304 A1Sacmi Cooperativa Meccanici Imola Societa' Cooperativa
- Sheet of covering material, use of said sheet, building structure comprising said sheet and method for manufacturing said sheet6 Aug 2026US 2026/0226317 A1Redeahold Apeldoorn B.V.
- System and method for blow molding plate components for articles of footwear25 Jun 2026US 2026/0175505 A1NIKE, Inc.
- Improved retaining device and associated production method14 May 2026US 2026/0131509 A1Aplix
Most cited
By later US patents
- Articles of manufacture and methods for manufacturing laminate structures including inorganically filled sheets312US 5,830,548 AE. Khashoggi Industries · 1998
- Endoluminal graft with integral structural support and method for making same267US 6,053,943 AImpra, Inc. · 2000
- Catheter with irregular inner and/or outer surfaces to reduce travelling friction248US 5,496,292 A1996
- Reinforced vascular graft and method of making same246US 5,609,624 AImpra, Inc. · 1997
- Open capillary channel structures, improved process for making capillary channel structures, and extrusion die for use therein233US 5,200,248 AThe Procter & Gamble Company · 1993