E04H 4/1627
Powered gutter cleaners
Official title: {Powered gutter cleaners}
E04H4/1627 (Powered gutter cleaners) appears on 6 US grants and 3 published applications in this corpus.
Search patents in E04H- Granted patents
- 6
- Published applications
- 3
- Assignees
- 0
- Inventors
- 14
- Latest grant
- 22 Nov 1994
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 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 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Swimming pool tile brushing device22 Nov 1994US 5,365,626 A
- Apparatus for cleaning pool tile1 Nov 1988US 4,780,992 A
- Tile cleaning device for removing calcium build-up in pools12 Aug 1986US 4,604,766 A
- Swimming pool cleaning device24 Sep 1985US 4,542,549 A
- Hand-held cleaning tool with remote water turbine power source7 Aug 1984US 4,463,525 A
Most cited
By later US patents
- Apparatus for cleaning pool tile44US 4,780,992 A1988
- Hand-held cleaning tool with remote water turbine power source19US 4,463,525 A1984
- Swimming pool tile cleaning device9US 4,324,015 A1982
- Swimming pool cleaning device6US 4,542,549 A1985
- Tile cleaning device for removing calcium build-up in pools4US 4,604,766 A1986