B01F 23/231155
The bubbling devices floating and having a pendulum movement, going to and
Official title: {the bubbling devices floating and having a pendulum movement, going to and from or moving in alternating directions}
B01F23/231155 (The bubbling devices floating and having a pendulum movement, going to and) appears on 7 US grants and 1 published applications in this corpus.
Search patents in B01F- Granted patents
- 7
- Published applications
- 1
- Assignees
- 2
- Inventors
- 11
- Latest grant
- 28 Apr 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 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 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
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Most cited
By later US patents
- Submersible aeration train and aeration apparatus for biological purification of sewage82US 5,316,671 A1994
- Aeration train and aeration apparatus for biological purification of wastewater63US 5,374,353 A1994
- Biological purification of waste waters34US 4,797,212 A1989
- Apparatus for biological purification of sewage20US 4,287,062 A1981
- Submerged diffuser lifting arrangement14US 5,906,774 AParkson Corporation · 1999