D21F 7/008
Steam showers
Official title: {Steam showers}
D21F7/008 (Steam showers) appears on 100 US grants and 45 published applications in this corpus.
Search patents in D21F- Granted patents
- 100
- Published applications
- 45
- Assignees
- 41
- Inventors
- 140
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 2 |
| 2002 | 6 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 5 |
| 2005 | 3 | 4 |
| 2006 | 1 | 4 |
| 2007 | 0 | 0 |
| 2008 | 3 | 2 |
| 2009 | 4 | 4 |
| 2010 | 2 | 1 |
| 2011 | 2 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 3 |
| 2015 | 1 | 0 |
| 2016 | 2 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 3 |
| 2021 | 3 | 6 |
| 2022 | 4 | 2 |
| 2023 | 2 | 1 |
| 2024 | 0 | 4 |
| 2025 | 0 | 1 |
| 2026 | 3 | 0 |
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
- Sheet manufacturing apparatus and sheet manufacturing method14 Apr 2026US 12,601,115 B2Seiko Epson Corporation
- Method and device for producing or treating a web of fibrous material14 Apr 2026US 12,601,116 B2Voith Patent GmbH
- System, control system, an inspection system, and a method of controlling and cleaning a steam box28 Nov 2023US 11,828,024 B2IBS of America
- Sheet manufacturing method and sheet manufacturing apparatus12 Sep 2023US 11,753,769 B2Seiko Epson Corporation
- Method for rewetting a web made from paper, and plant22 May 2025US 2025/0163650 A1BHS Corrugated Maschinen-und Anlagenbau GmbH
- Sheet manufacturing apparatus26 Dec 2024US 2024/0426053 A1Seiko Epson Corporation
- Method and machine for producing a material web in a paper machine18 Jul 2024US 2024/0240402 A1Voith Patent GmbH
- Sheet manufacturing apparatus and sheet manufacturing method4 Apr 2024US 2024/0110335 A1Seiko Epson Corporation
- Method and device for producing or treating a web of fibrous material14 Mar 2024US 2024/0084509 A1Voith Patent GmbH
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
- Method and apparatus for drying a fibrous web63US 8,435,384 B2Voith Patent GmbH · 2013
- 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
- Steam shower for improving paper moisture profile52US 4,331,510 AWeyerhaeuser Company · 1982