B65G 23/20
Screws
B65G23/20 (Screws) appears on 12 US grants and 11 published applications in this corpus.
Search patents in B65G- Granted patents
- 12
- Published applications
- 11
- Assignees
- 15
- Inventors
- 27
- Latest grant
- 9 Jan 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 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 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 2 |
| 2014 | 2 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Drive unit9 Jan 2018US 9,862,548 B2Weiss GmbH
- Transmission and positioning mechanism6 Jun 2017US 9,669,999 B2FIH (Hong Kong) Limited
- Transfer apparatus for transferring an item15 Jul 2014US 8,776,988 B2Sluis Cigar Machinery B.V.
- Conveyor22 Apr 2014US 8,701,874 B2Interroll Holding AG
- Conveyor chain and conveyor chain driving device5 Jul 2011US 7,971,706 B2Tsubakimoto Chain Co.
- Conveyor assembly5 Dec 2024US 2024/0400313 A1
- Systems and methods of sorting and conveying produce22 Jun 2023US 2023/0192408 A1Roller Conveyor, LLC
- Drive unit6 Jul 2017US 2017/0190514 A1Weiss GmbH
- Transmission and positioning mechanism23 Jun 2016US 2016/0176643 A1FIH (Hong Kong) Limited
- Conveyor driven by a cam12 Dec 2013US 2013/0327614 A1
Most cited
By later US patents
- Side-flexing chain with wheels30US 5,076,422 ATekno, Inc. · 1991
- Endless loop modular conveyor system with drive screw21US 5,911,305 ASpan Tech LLC · 1999
- Continuous article handling conveyor17US 4,476,974 ARexnord Inc. · 1984
- Retractable drive assembly for conveyor8US 4,650,066 ARexnord Inc. · 1987
- Method and drive apparatus for continuously casting metal in a continuous block caster3US 6,325,204 B1Nichols Aluminum-Golden, Inc. · 2001