B01D 1/226
In the form of a screw or with helical blade members
Official title: {in the form of a screw or with helical blade members}
B01D1/226 (In the form of a screw or with helical blade members) appears on 26 US grants and 19 published applications in this corpus.
Search patents in B01D- Granted patents
- 26
- Published applications
- 19
- Assignees
- 19
- Inventors
- 69
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 5 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 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 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 3 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 3 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 2 | 1 |
| 2022 | 1 | 3 |
| 2023 | 1 | 1 |
| 2024 | 3 | 3 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Thin-layer treatment device15 Sep 2026US 12,734,463 B2Aurotec GmbH
- Thin-layer treatment device1 Oct 2024US 12,102,939 B2Aurotec GmbH
- Multi-functional fecal waste and garbage processor and associated methods30 Jan 2024US 11,885,243 B2Bill & Melinda Gates Foundation
- Processing system and method16 Jan 2024US 11,872,553 B2Wiley Organics, Inc.
- Multi-functional fecal waste and garbage processor and associated methods31 Jan 2023US 11,566,543 B2Bill & Melinda Gates Foundation
- Systems and Methods for Treatment of Materials27 Jun 2024US 2024/0207911 A1
- Thin-layer treatment device13 Jun 2024US 2024/0189736 A1Aurotec GmbH
- Kneader mixer for processing a transfer mixture into a moulding solution according to the direct dissolving method7 Mar 2024US 2024/0076832 A1List Technology AG
- Multi-functional fecal waste and garbage processor and associated methods12 Oct 2023US 2023/0323796 A1Bill & Melinda Gates Foundation
- Processing system and method17 Nov 2022US 2022/0362761 A1Wiley Organics, Inc.
Most cited
By later US patents
- Method and apparatus for removing volatile matter from highly viscous material37US 4,361,462 AHitachi, Ltd. · 1982
- Thin-film processing apparatus and method17US 4,093,479 AArtisan Industries Inc. · 1978
- Multi-functional fecal waste and garbage processor and associated methods11US 9,708,937 B2Bill & Melinda Gates Foundation · 2017
- Multi-functional fecal waste and garbage processor and associated methods9US 10,247,049 B2Bill & Melinda Gates Foundation · 2019
- Apparatus for heat-mass exchange processes with participation of liquid9US 4,198,360 A1980