D21D 1/36
With vertical shaft
Official title: with vertical shaft
D21D1/36 (With vertical shaft) appears on 8 US grants and 6 published applications in this corpus.
Search patents in D21D- Granted patents
- 8
- Published applications
- 6
- Assignees
- 8
- Inventors
- 24
- Latest grant
- 15 Mar 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 2 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for producing nanofibrillar cellulose and nanofibrillar cellulose product15 Mar 2022US 11,274,396 B2Upm-Kymmene Corporation
- Method for producing nanofibrillar cellulose and nanofibrillar cellulose product30 Jun 2020US 10,697,116 B2Upm-Kymmene Corporation
- Method for producing nanofibrillar cellulose22 Aug 2017US 9,739,011 B2Upm-Kymmene Corporation
- Screening apparatus for fiber suspension3 Jun 2003US 6,571,957 B1Voith Sulzer Paper Technology North America, Inc.
- Super microfibrillated cellulose, process for producing the same, and coated paper and tinted paper using the same10 Apr 2001US 6,214,163 B1Tokushu Paper Mfg. Co., Ltd.
- Defibration processing apparatus and fiber processing apparatus24 Sep 2020US 2020/0299897 A1Seiko Epson Corporation
- Method for producing nanofibrillar cellulose and nanofibrillar cellulose product27 Aug 2020US 2020/0270810 A1Upm-Kymmene Corporation
- Method for processing wood fibers14 Mar 2019US 2019/0078259 A1International Paper Company
- Method for producing nanofibrillar cellulose and nanofibrillar cellulose product27 Jul 2017US 2017/0211230 A1Upm-Kymmene Corporation
- A method for producing nanofibrillar cellulose25 Sep 2014US 2014/0284407 A1Upm-Kymmene Corporation
Most cited
By later US patents
- Super microfibrillated cellulose, process for producing the same, and coated paper and tinted paper using the same136US 6,183,596 B2Tokushu Paper Mfg. Co., Ltd. · 2001
- Super microfibrillated cellulose, process for producing the same, and coated paper and tinted paper using the same110US 6,214,163 B1Tokushu Paper Mfg. Co., Ltd. · 2001
- Method and apparatus of defibrating a fibre-containing material50US 6,202,946 B1Megatrex Oy · 2001
- Screening apparatus for fiber suspension6US 6,571,957 B1Voith Sulzer Paper Technology North America, Inc. · 2003
- Method for producing nanofibrillar cellulose and nanofibrillar cellulose product2US 10,697,116 B2Upm-Kymmene Corporation · 2020