B29C 48/615
Threads having varying helix angles
B29C48/615 (Threads having varying helix angles) appears on 8 US grants and 7 published applications in this corpus.
Search patents in B29C- Granted patents
- 8
- Published applications
- 7
- Assignees
- 5
- Inventors
- 19
- Latest grant
- 22 Feb 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 2 | 2 |
| 2021 | 1 | 2 |
| 2022 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- High specific mechanical energy extrusion screw assembly22 Feb 2022US 11,254,041 B2Wenger Manufacturing, Inc.
- Plasticating apparatus screw having grooves of varying angles and depths7 Dec 2021US 11,192,279 B2Davis-Standard, LLC
- High specific mechanical energy extrusion screw assembly21 Apr 2020US 10,624,382 B2Wenger Manufacturing, Inc.
- Plasticating apparatus screw having grooves of varying angles and depths14 Jan 2020US 10,532,490 B2Davis-Standard, LLC
- Polymer melting and extruding apparatus with linear downstream threads24 Sep 2002US 6,454,454 B1
- Apparatus, process, and extrusion screw for producing syndet soaps30 Jun 2022US 2022/0204893 A1Soapworks Limited
- Plasticating apparatus screw having grooves of varying angles and depths12 Aug 2021US 2021/0245397 A1Davis-Standard, LLC
- Plasticating apparatus screw having grooves of varying angles and depths12 Aug 2021US 2021/0245398 A1Davis-Standard, LLC
- High specific mechanical energy extrusion screw assembly16 Apr 2020US 2020/0113222 A1Wenger Manufacturing, Inc.
- Plasticating apparatus screw having grooves of varying angles and depths26 Mar 2020US 2020/0094439 A1Davis-Standard, LLC
Most cited
By later US patents
- Extrusion apparatus24US 4,129,386 AAkzona Incorporated · 1978
- Twin-screw kneading apparatus19US 5,947,593 AKabushiki Kaisha Kobe Seiko Sho · 1999
- Extruder screw9US 6,179,461 B2Davis-Standard, LLC · 2001
- Polymer melting and extruding apparatus with linear downstream threads9US 6,454,454 B12002
- High specific mechanical energy extrusion screw assembly3US 10,624,382 B2Wenger Manufacturing, Inc. · 2020