D21F 9/043
With immersed cylinder
Official title: {with immersed cylinder}
D21F9/043 (With immersed cylinder) appears on 15 US grants and 9 published applications in this corpus.
Search patents in D21F- Granted patents
- 15
- Published applications
- 9
- Assignees
- 12
- Inventors
- 27
- Latest grant
- 1 Oct 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 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 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 3 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and apparatus for manufacturing watermarked paper1 Oct 2019US 10,428,457 B2Fedrigoni S.P.A.
- Sheet former18 Sep 2018US 10,077,530 B2BS Co., Ltd.
- Sheet material comprising at least one watermark having a colored shade7 Oct 2014US 8,852,396 B2Arjowiggins
- Knitted structure designed to be incorporated in a sheet material21 May 2013US 8,445,392 B2Arjowiggins
- Apparatus and method for manufacturing security paper12 Mar 2013US 8,394,238 B2Cartiere Fedrigoni E C. S.p.A.
- Method and apparatus for manufacturing watermarked paper6 Sep 2018US 2018/0251943 A1Fedrigoni S.P.A.
- Sheet former22 Jun 2017US 2017/0175330 A1BS Co., Ltd.
- Sheet material comprising at least one watermark having a colored shade16 Aug 2012US 2012/0205062 A1Arjowiggins
- Process for manufacturing a sheet material22 Jul 2010US 2010/0181036 A1Arjowiggins Security
- Sheet material comprising at least one watermark having a colored shade10 Dec 2009US 2009/0301676 A1Arjowiggins
Most cited
By later US patents
- Vacuum filtration system and method of filtering pulp fibers from pulp slurry using the same13US 5,281,343 AIngersoll-Rand Company · 1994
- Extended couch nip on cylinder former7US 7,510,630 B2Albany International Corp. · 2009
- Thickener apparatus including a shaftless cylinder mold6US 4,106,980 AThe Black Clawson Company · 1978
- Transfer fabric and papermaking machine using the same6US 6,397,899 B1Kobayashi Engineering Works, Ltd. · 2002
- Method and apparatus for treating a fiber suspension5US 5,264,138 AA. Ahlstrom Corporation · 1993