Y10S 261/71
Sewage aerators
Official title: Sewage aerators; rotating
Y10S261/71 (Sewage aerators) appears on 18 US grants and 3 published applications in this corpus.
Search patents in Y10S- Granted patents
- 18
- Published applications
- 3
- Assignees
- 9
- Inventors
- 23
- Latest grant
- 20 Dec 2011
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Apparatus and method for aerating waste water20 Dec 2011US 8,079,573 B2
- Rotating perforated cylinder treatment system17 Feb 2009US 7,491,324 B2Ionic Water Technologies, Inc.
- Process and apparatus for increasing biological activity in waste treatment in bodies of water12 Feb 2008US 7,329,351 B2Absolute Aeration
- Rotating perforated cylinder treatment system14 Mar 2006US 7,011,745 B1
- Method for operating a chemical and/or physical process by means of a hierarchical fluid injection system25 Dec 2001US 6,333,019 B1
- Apparatus and Method for Aerating Waste Water6 Mar 2008US 2008/0053921 A1
- Rotating perforated cylinder treatment system19 Apr 2007US 2007/0084769 A1Ionic Water Technologies, Inc.
- Process and apparatus for increasing biological activity in waste treatment in bodies of water22 Feb 2007US 2007/0039878 A1Absolute Aeration
Most cited
By later US patents
- Method for operating a chemical and/or physical process by means of a hierarchical fluid injection system43US 6,333,019 B12001
- Apparatus for gas absorption in a liquid39US 5,085,809 ABarrett, Haentjens & Co. · 1992
- Apparatus for gas absorption in a liquid30US 5,043,104 ABarrett, Haentjens & Co. · 1991
- Device for revolving liquids and supplying gas thereto25US 3,975,469 AThe De Laval Separator Company · 1976
- Process and apparatus for increasing biological activity in waste treatment in bodies of water23US 7,329,351 B2Absolute Aeration · 2008