D21F 3/06
Means for regulating the pressure
D21F3/06 (Means for regulating the pressure) appears on 61 US grants and 44 published applications in this corpus.
Search patents in D21F- Granted patents
- 61
- Published applications
- 44
- Assignees
- 30
- Inventors
- 96
- Latest grant
- 3 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 3 |
| 2003 | 1 | 3 |
| 2004 | 3 | 4 |
| 2005 | 4 | 3 |
| 2006 | 2 | 3 |
| 2007 | 2 | 1 |
| 2008 | 1 | 1 |
| 2009 | 3 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 2 | 3 |
| 2014 | 1 | 4 |
| 2015 | 4 | 1 |
| 2016 | 1 | 3 |
| 2017 | 4 | 3 |
| 2018 | 1 | 1 |
| 2019 | 3 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 3 |
| 2022 | 2 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press3 Sep 2024US 12,077,914 B2International Paper Company
- Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press18 Apr 2023US 11,629,461 B2International Paper Company
- Suction roll13 Sep 2022US 11,441,270 B2Röchling Industrial Oepping GmbH & Co. KG
- Sheet manufacturing apparatus and control method for sheet manufacturing apparatus26 Apr 2022US 11,313,078 B2Seiko Epson Corporation
- Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press9 Mar 2021US 10,941,521 B2International Paper Company
- Roller with shielding for sensors10 Sep 2026US 2026/0266672 A1Joanneum Research Forschungsgesellschaft mbH
- Sheet manufacturing apparatus and method of manufacturing sheets29 May 2025US 2025/0171961 A1Seiko Epson Corporation
- Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press5 Dec 2024US 2024/0401273 A1International Paper Company
- Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press10 Aug 2023US 2023/0250584 A1International Paper Company
- Sheet manufacturing apparatus and control method for sheet manufacturing apparatus9 Sep 2021US 2021/0277602 A1Seiko Epson Corporation
Most cited
By later US patents
- Method and device for measurement of the nip force and/or nip pressure in a nip formed by a revolving roll or a band that is used in the manufacture of paper73US 5,383,371 AValmet Paper Machinery Inc. · 1995
- Dynamic nip pressure and temperature sensing system72US 5,562,027 AStowe Woodward Licensco, LLC · 1996
- Roll having means for determining pressure distribution56US 5,592,875 AStowe Woodward Licensco, LLC · 1997
- Roll having means for determining pressure distribution55US 5,699,729 AStowe Woodward AG · 1997
- Nip control method and apparatus32US 4,384,514 AConsolidated-Bathurst Limited · 1983