D21F 1/345
Spraying-pipe cleaners
Official title: {Spraying-pipe cleaners}
D21F1/345 (Spraying-pipe cleaners) appears on 5 US grants and 3 published applications in this corpus.
Search patents in D21F- Granted patents
- 5
- Published applications
- 3
- Assignees
- 4
- Inventors
- 10
- Latest grant
- 5 Jul 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 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 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Pulp washer mist eliminator and foam remover system5 Jul 2022US 11,377,794 B2
- Apparatus for spraying a liquid25 Sep 2012US 8,272,577 B2
- Flushing cleaner for multiple shower wand assemblies8 Jun 1999US 5,909,847 AProductive Solutions, Inc.
- Decontamination valve for a jet pipe in a paper or board machine9 Sep 1997US 5,664,731 AValmet Corporation
- Nozzle for spray tubes18 May 1993US 5,211,335 AKvaerner Eureka a.s.
Most cited
By later US patents