F16L 9/01
Rigid pipes: of wood
Official title: of wood (F16L9/16 - F16L9/22 take precedence)
F16L9/01 (Rigid pipes: of wood) appears on 5 US grants and 3 published applications in this corpus.
Search patents in F16L- Granted patents
- 5
- Published applications
- 3
- Assignees
- 4
- Inventors
- 10
- Latest grant
- 26 Feb 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 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 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Hemp-winding composite pipe26 Feb 2019US 10,215,312 B2Zhejiang Xinzhou Bamboo-Based Composites Technology Co., Ltd.
- Duct with electrically conductive coating11 Apr 2017US 9,618,145 B2Hamilton Sundstrand Corporation
- Method of making wood tubing5 May 1998US 5,746,863 AHollowood, Inc.
- Wood tubing19 Nov 1996US 5,576,082 AHollowood, Inc.
- Method for making a pipe-shaped body of wood30 Jan 1990US 4,897,140 A
Most cited
By later US patents