B63B 23/20
Davits with single arms
Official title: Davits with single arms (cranes in general B66C)
B63B23/20 (Davits with single arms) appears on 4 US grants and 1 published applications in this corpus.
Search patents in B63B- Granted patents
- 4
- Published applications
- 1
- Assignees
- 1
- Inventors
- 5
- Latest grant
- 12 Oct 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 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 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
By publication year.
Subgroups
Granted patents
Recent patents
- Portable crane formed of composite members12 Oct 2021US 11,142,436 B1OZ Lifting Products, LLC
- Portable gantry crane formed of composite members3 Mar 2020US 10,577,227 B1OZ Lifting Products, LLC
- Portable crane formed of composite members25 Apr 2017US 9,630,816 B1OZ Lifting Products, LLC
- Rotating davit apparatus3 Jun 2008US 7,380,516 B1
Most cited
By later US patents