B30B 11/246
Screw constructions
Official title: {Screw constructions}
B30B11/246 (Screw constructions) appears on 68 US grants and 44 published applications in this corpus.
Search patents in B30B- Granted patents
- 68
- Published applications
- 44
- Assignees
- 43
- Inventors
- 114
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 3 |
| 2003 | 1 | 0 |
| 2004 | 4 | 2 |
| 2005 | 0 | 3 |
| 2006 | 0 | 0 |
| 2007 | 2 | 2 |
| 2008 | 1 | 0 |
| 2009 | 2 | 7 |
| 2010 | 0 | 3 |
| 2011 | 1 | 1 |
| 2012 | 3 | 2 |
| 2013 | 1 | 2 |
| 2014 | 5 | 2 |
| 2015 | 2 | 0 |
| 2016 | 3 | 2 |
| 2017 | 3 | 4 |
| 2018 | 1 | 0 |
| 2019 | 2 | 2 |
| 2020 | 1 | 2 |
| 2021 | 0 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 2 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Screw and twin-screw assembly for use in elastomer mixture extruders and associated method for extrusion of elastomer mixtures11 Aug 2026US 12,703,137 B2Pomini Rubber & Plastics S.r.l.
- Screw for an extruder and extruder device24 Jun 2025US 12,337,519 B2Gimac Di Maccagnan Giorgio
- Helical screw conveyor unit, worm shaft, worm extruder, and method for providing a worm shaft20 May 2025US 12,304,167 B2Kanadevia Inova AG
- Screw elements for extrusion apparatus and methods of manufacturing a honeycomb body3 Sep 2024US 12,076,903 B2Corning Incorporated
- Material conveying screw and method for producing same1 Mar 2022US 11,260,648 B2Compagnie Generale Des Etablissements Michelin
- A screw extruder and a method of controlling extrusion pressure in a screw extruder13 Aug 2026US 2026/0233278 A1Circmet AS
- Screw For An Extruder And Extruder Device12 Mar 2026US 2026/0070277 A1Gimac Di Maccagnan Giorgio
- Helical screw conveyor unit, worm shaft, worm extruder, and method for providing a worm shaft19 Dec 2024US 2024/0416607 A1Hitachi Zosen Inova AG
- Screw and twin-screw assembly for use in elastomer mixture extruders and associated method for extrusion of elastomer mixtures21 Dec 2023US 2023/0405908 A1Pomini Rubber & Plastics S.r.l.
- Screw For An Extruder And Extruder Device16 Sep 2021US 2021/0283815 A1Gimac Di Maccagnan Giorgio
Most cited
By later US patents
- Method and apparatus for grinding chips into paper pulp73US 4,088,528 A1978
- Artificial firelog and firestarter chip producing apparatus50US 6,655,943 B12003
- Material-processing screw machine48US 4,600,311 AClextral · 1986
- Compactor with expanding and contracting nozzle44US 5,611,268 A1997
- Method and apparatus for producing fully cooked extrudates with significantly reduced specific mechanical energy inputs44US 7,521,076 B1Wenger Manufacturing, Inc. · 2009