F16K 5/182
By means of conical surfaces
Official title: {by means of conical surfaces}
F16K5/182 (By means of conical surfaces) appears on 4 US grants and 4 published applications in this corpus.
Search patents in F16K- Granted patents
- 4
- Published applications
- 4
- Assignees
- 4
- Inventors
- 11
- Latest grant
- 9 Feb 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 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 | 1 | 1 |
| 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 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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- Enhanced design for plug valve8 Oct 2020US 2020/0318750 A1Halliburton Energy Services.Inc.
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- Plug valve assembly and fluid flow control method with improved low pressure sealing14 Aug 2003US 2003/0151016 A1Halliburton Energy Services.Inc.
Most cited
By later US patents