D21F 11/06
Processes for making continuous lengths of paper, or of cardboard, or of
Official title: of the cylinder type
D21F11/06 (Processes for making continuous lengths of paper, or of cardboard, or of) appears on 59 US grants and 54 published applications in this corpus.
Search patents in D21F- Granted patents
- 59
- Published applications
- 54
- Assignees
- 38
- Inventors
- 133
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 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 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 2 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 2 |
| 2018 | 1 | 4 |
| 2019 | 2 | 9 |
| 2020 | 2 | 2 |
| 2021 | 10 | 7 |
| 2022 | 2 | 3 |
| 2023 | 9 | 7 |
| 2024 | 3 | 5 |
| 2025 | 3 | 1 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for producing a green paper for producing a gas diffusion layer for a fuel cell23 Jun 2026US 12,665,202 B2Giesecke+Devrient Currency Technology GmbH
- Method for manufacturing molded product17 Mar 2026US 12,577,733 B2Seiko Epson Corporation
- Sheet manufacturing apparatus and sheet manufacturing method17 Feb 2026US 12,553,183 B2Seiko Epson Corporation
- Multilayer film comprising MFC22 Jul 2025US 12,366,035 B2Stora Enso OYJ
- Rotary filter apparatus for roll-to-roll nanomaterial dispersion papermaking1 Jul 2025US 12,343,683 B2Bulk Nano Processing LLC
- Thermal paper, and methods and systems for forming the same16 Apr 2026US 2026/0103015 A1G13 Innovation in Production Ltd
- Sheets for printing, sheets for thermal printing, and methods and systems for forming the same8 May 2025US 2025/0144951 A1G13 Innovation in Production Ltd
- Thermal paper, and methods and systems for forming the same5 Dec 2024US 2024/0399778 A1G13 Innovation in Production Ltd
- Sheet manufacturing apparatus and sheet manufacturing method4 Apr 2024US 2024/0110334 A1Seiko Epson Corporation
- Rotary Filter Apparatus For Roll-To-Roll Nanomaterial Dispersion Papermaking21 Mar 2024US 2024/0091713 A1Bulk Nano Processing LLC
Most cited
By later US patents
- Method and apparatus for making absorbent structures with absorbent material155US 8,568,566 B2The Procter & Gamble Company · 2013
- Fiber reinforced plastic articles and method of preparation54US 3,954,555 ANational Gypsum Company · 1976
- Multi-layered water-decomposable fibrous sheet37US 6,258,210 B1Uni-Charm Corporation · 2001
- Antifalsification paper30US 5,783,275 AGiesecke & Devrient GmbH · 1998
- Method for manufacturing a security paper25US 8,083,894 B2Giesecke & Devrient GmbH · 2011