D21F 7/003
Indicating or regulating the moisture content of the layer
Official title: {Indicating or regulating the moisture content of the layer}
D21F7/003 (Indicating or regulating the moisture content of the layer) appears on 122 US grants and 68 published applications in this corpus.
Search patents in D21F- Granted patents
- 122
- Published applications
- 68
- Assignees
- 68
- Inventors
- 211
- Latest grant
- 28 Jul 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 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 9 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 3 |
| 2005 | 3 | 1 |
| 2006 | 1 | 4 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 2 | 2 |
| 2010 | 1 | 2 |
| 2011 | 2 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 2 | 2 |
| 2016 | 1 | 1 |
| 2017 | 1 | 2 |
| 2018 | 0 | 3 |
| 2019 | 2 | 1 |
| 2020 | 3 | 4 |
| 2021 | 3 | 5 |
| 2022 | 5 | 9 |
| 2023 | 5 | 4 |
| 2024 | 8 | 11 |
| 2025 | 5 | 4 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sheet manufacturing apparatus28 Jul 2026US 12,692,655 B2Seiko Epson Corporation
- Method for applying coating chemicals to yankee dryers for tissue and towel production14 Jul 2026US 12,680,229 B2Ecolab USA Inc.
- Moisture management to control particle size distribution in shredded waste materials26 May 2026US 12,637,808 B2Continuus Materials Intellectual Property, LLC
- Method of controlling sheet manufacturing apparatus14 Apr 2026US 12,601,117 B2Seiko Epson Corporation
- Sheet manufacturing apparatus and sheet manufacturing method17 Feb 2026US 12,553,183 B2Seiko Epson Corporation
- Method for applying coating chemicals to yankee dryers for tissue and towel production1 Oct 2026US 2026/0297849 A1Ecolab USA Inc.
- A paper machine18 Jun 2026US 2026/0168174 A1Valmet Corporation
- Paper-specific moisture control in a traveling paper web29 Jan 2026US 2026/0028779 A1Intpro, LLC
- Systems and methods for monitoring and controlling industrial processes27 Nov 2025US 2025/0362667 A1Industrial Video Solutions Inc.
- Sheet manufacturing apparatus9 Oct 2025US 2025/0314013 A1Seiko Epson Corporation
Most cited
By later US patents
- Simultaneously controlled steam shower and vacuum apparatus and method of using same65US 5,149,401 AThermo Electron Web Systems, Inc. · 1992
- Rapid-scanning infrared sensor63US 4,879,471 AMeasurex Corporation · 1989
- Profiling air/steam system for paper-making machines59US 4,836,894 ABeloit Corporation · 1989
- Cross-direction actuator and control system with adaptive footprint58US 7,513,975 B2Honeywell International Inc. · 2009
- Louvered steam box for controlling moisture profile of a fibrous web55US 4,545,857 AWeyerhaeuser Company · 1985