B01F 35/754551
Using helical screws
Official title: {using helical screws}
B01F35/754551 (Using helical screws) appears on 97 US grants and 97 published applications in this corpus.
Search patents in B01F- Granted patents
- 97
- Published applications
- 97
- Assignees
- 83
- Inventors
- 211
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 1 |
| 2006 | 2 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 4 |
| 2009 | 0 | 2 |
| 2010 | 2 | 2 |
| 2011 | 1 | 5 |
| 2012 | 3 | 3 |
| 2013 | 4 | 3 |
| 2014 | 3 | 16 |
| 2015 | 8 | 1 |
| 2016 | 6 | 4 |
| 2017 | 4 | 7 |
| 2018 | 6 | 5 |
| 2019 | 3 | 8 |
| 2020 | 5 | 7 |
| 2021 | 4 | 5 |
| 2022 | 4 | 2 |
| 2023 | 4 | 3 |
| 2024 | 4 | 10 |
| 2025 | 2 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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