D21F 3/0272
In combination with suction or blowing devices
Official title: {in combination with suction or blowing devices}
D21F3/0272 (In combination with suction or blowing devices) appears on 99 US grants and 81 published applications in this corpus.
Search patents in D21F- Granted patents
- 99
- Published applications
- 81
- Assignees
- 41
- Inventors
- 135
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 8 | 2 |
| 2002 | 7 | 4 |
| 2003 | 3 | 6 |
| 2004 | 4 | 2 |
| 2005 | 1 | 6 |
| 2006 | 0 | 1 |
| 2007 | 4 | 9 |
| 2008 | 3 | 5 |
| 2009 | 5 | 1 |
| 2010 | 5 | 8 |
| 2011 | 4 | 4 |
| 2012 | 4 | 3 |
| 2013 | 6 | 1 |
| 2014 | 1 | 4 |
| 2015 | 0 | 3 |
| 2016 | 4 | 0 |
| 2017 | 2 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 2 |
| 2020 | 1 | 4 |
| 2021 | 4 | 2 |
| 2022 | 1 | 6 |
| 2023 | 4 | 3 |
| 2024 | 5 | 2 |
| 2025 | 2 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Papermaking machine with press section11 Aug 2026US 12,703,944 B2Structured I, LLC
- Sheet manufacturing apparatus21 Jul 2026US 12,686,972 B2Seiko Epson Corporation
- Extended nip press apparatus1 Jul 2025US 12,344,995 B2Occendo AB
- Pulp molding production line and processing method thereof1 Apr 2025US 12,264,435 B2Shurcon Manufacturing, Inc.
- Pulp molding production line and processing method10 Sep 2024US 12,084,812 B2
- Ceiling basemat water reduction through strategic use of pressing and vacuuming17 Sep 2026US 2026/0275636 A1USG Interiors, Inc.
- An extended nip press apparatus27 Mar 2025US 2025/0101682 A1Occzendo AB
- Papermaking machine with press section28 Nov 2024US 2024/0392503 A1Structured I, LLC
- Sheet manufacturing apparatus15 Feb 2024US 2024/0052570 A1Seiko Epson Corporation
- Pulp molding production line and processing method thereof5 Oct 2023US 2023/0313459 A1Be Green Packaging Co., Ltd.
Most cited
By later US patents
- Twin wire for an ATMOS system87US 7,744,726 B2Voith Patent GmbH · 2010
- Advanced dewatering system86US 7,931,781 B2Voith Patent GmbH · 2011
- Method of dewatering a fibrous web with a press belt82US 7,351,307 B2Voith Paper Patent GmbH · 2008
- Device and method for producing a material web80US 8,382,956 B2Voith Patent GmbH · 2013
- Leakage control system for treatment of moving webs73US 6,579,418 B2Kimberly-Clark Worldwide, Inc. · 2003