D21D 1/38
With horizontal shaft
Official title: with horizontal shaft
D21D1/38 (With horizontal shaft) appears on 30 US grants and 24 published applications in this corpus.
Search patents in D21D- Granted patents
- 30
- Published applications
- 24
- Assignees
- 24
- Inventors
- 73
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 2 |
| 2002 | 1 | 0 |
| 2003 | 2 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 3 |
| 2007 | 1 | 2 |
| 2008 | 1 | 2 |
| 2009 | 2 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 2 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 3 |
| 2025 | 3 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Refining device27 Jan 2026US 12,533,679 B2Seiko Epson Corporation
- Refiner11 Nov 2025US 12,467,201 B2Aikawa Iron Works Co., Ltd.
- Driving assistance apparatus20 May 2025US 12,307,893 B2Honda Motor Co., Ltd.
- Refiner4 Feb 2025US 12,215,462 B2Aikawa Iron Works Co., Ltd.
- Refiner blade element6 Feb 2024US 11,891,758 B2Valmet Technologies Oy
- Fibre processing apparatus and an associated method31 Jul 2025US 2025/0243625 A1Zelfo Technology GmbH
- Refiner5 Sep 2024US 2024/0296736 A1Aikawa Iron Works Co., Ltd.
- Refiner18 Jul 2024US 2024/0242605 A9Aikawa Iron Works Co., Ltd.
- Refining device25 Jan 2024US 2024/0024886 A1Seiko Epson Corporation
- Refiner18 May 2023US 2023/0151543 A1Aikawa Iron Works Co., Ltd.
Most cited
By later US patents
- Process for making expanded fiber54US 4,761,203 AThe Buckeye Cellulose Corporation · 1988
- Intermeshing screw-type refiner15US 4,393,983 A1983
- Segment for drum refiners and structure provided therewith11US 5,148,994 AMaschinenfabrik Andritz Actiengesellschaft · 1992
- Apparatus for regulated dispersion treatment of highly consistent fibrous substances10US 5,730,376 AVoith Sulzer Stoffaufbereitung GmbH · 1998
- Refiner for wood pulp or the like9US 3,984,057 A1976