D21F 3/083
Perforated
Official title: {perforated}
D21F3/083 (Perforated) appears on 8 US grants and 3 published applications in this corpus.
Search patents in D21F- Granted patents
- 8
- Published applications
- 3
- Assignees
- 6
- Inventors
- 16
- Latest grant
- 15 Nov 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 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 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Roll cover, roll, and use of said roll15 Nov 2022US 11,499,037 B2Voith Patent GmbH
- Press roll comb plate and related method31 Oct 2017US 9,803,319 B2Andritz Inc.
- Vented main roll for press assembly in a paper machine26 Apr 2005US 6,884,323 B2Voith Paper Patent GmbH
- Press jacket and method for treating a material web9 Jul 2002US 6,416,630 B1Voith Sulzer Papiertechnik Patent GmbH
- Anti-rewet deck for press rolls28 Nov 1995US 5,470,471 AIngersoll-Rand Company
Most cited
By later US patents
- Suction press roll45US 4,366,025 ABeloit Corporation · 1982
- Anti-rewet deck for press rolls6US 5,470,471 AIngersoll-Rand Company · 1995
- Restoration of suction press shells5US 3,975,814 A1976
- Method of making squeezing roll and squeezing equipment5US 4,866,826 A1989
- Press jacket and method for treating a material web4US 6,416,630 B1Voith Sulzer Papiertechnik Patent GmbH · 2002