D21G 3/04
Doctors: for drying cylinders
Official title: for drying cylinders
D21G3/04 (Doctors: for drying cylinders) appears on 34 US grants and 39 published applications in this corpus.
Search patents in D21G- Granted patents
- 34
- Published applications
- 39
- Assignees
- 24
- Inventors
- 68
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 3 | 2 |
| 2011 | 1 | 1 |
| 2012 | 2 | 2 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 3 |
| 2016 | 3 | 3 |
| 2017 | 0 | 3 |
| 2018 | 4 | 4 |
| 2019 | 3 | 2 |
| 2020 | 2 | 0 |
| 2021 | 2 | 1 |
| 2022 | 0 | 5 |
| 2023 | 2 | 1 |
| 2024 | 4 | 2 |
| 2025 | 2 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Tissue paper and method for manufacturing tissue paper20 May 2025US 12,305,335 B2Daio Paper Corporation
- Crepe blade11 Feb 2025US 12,220,893 B2Clouth Sprenger GmbH
- Creping blade for tissue making19 Nov 2024US 12,145,342 B2Irving Consumer Products Limited
- Blade and creping arrangement29 Oct 2024US 12,128,647 B2Voith Patent GmbH
- Creping process performance tracking and control8 Oct 2024US 12,111,644 B2Ecolab USA Inc.
- Creping process performance tracking and control6 Feb 2025US 2025/0044776 A1Ecolab USA Inc.
- Creping blade for tissue making30 Jan 2025US 2025/0033314 A1Irving Consumer Products Limited
- Blade and creping arrangement8 Aug 2024US 2024/0262071 A1Voith Patent GmbH
- Tissue paper and method for manufacturing tissue paper14 Mar 2024US 2024/0084513 A1Daio Paper Corporation
- Tissue paper and method for manufacturing tissue paper30 Nov 2023US 2023/0383470 A1Daio Paper Corporation
Most cited
By later US patents
- Method of controlling adhesive build-up on a yankee dryer103US 7,850,823 B2Georgia-Pacific Consumer Products LP · 2010
- Wet crepe throughdry process for making absorbent sheet and novel fibrous product55US 6,752,907 B2Georgia-Pacific Corporation · 2004
- Wet crepe throughdry process for making absorbent sheet and novel fibrous products54US 7,691,228 B2Georgia-Pacific Consumer Products LP · 2010
- Wet crepe throughdry process for making absorbent sheet and novel fibrous products51US 7,160,418 B2Georgia-Pacific Corporation · 2007
- Creping blade with a highly smooth bevel surface10US 7,691,236 B2The Procter & Gamble Company · 2010