D21H 23/66
Treating discontinuous paper
Official title: Treating discontinuous paper, e.g. sheets, blanks, rolls
D21H23/66 (Treating discontinuous paper) appears on 23 US grants and 17 published applications in this corpus.
Search patents in D21H- Granted patents
- 23
- Published applications
- 17
- Assignees
- 23
- Inventors
- 51
- Latest grant
- 21 May 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 2 |
| 2019 | 2 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 1 | 3 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of processing cannabis21 May 2024US 11,986,008 B2
- Method and apparatus for coating a drinking straw13 Jun 2023US 11,673,158 B1
- Polymer coated paperboard container and method17 May 2022US 11,332,281 B2Altria Client Services LLC
- Paper comprising aramid pulp and a friction paper made therefrom8 Sep 2020US 10,767,316 B2Dupont Safety & Construction, Inc.
- Polymer coated paperboard container and method31 Mar 2020US 10,604,302 B2Altria Client Services LLC
- Fibrous structures with improved surface properties and cold water solubility12 Mar 2026US 2026/0071387 A1The Procter & Gamble Company
- Method and composition providing enhanced alcohol barrier for paper packaging applications15 Jan 2026US 2026/0015798 A1Smart Planet Technologies, Inc.
- Processes for imparting oil and grease resistance to paper products25 Apr 2024US 2024/0133120 A1Ecolab USA Inc.
- Aerosol-generating article with combustion preventing wrapper2 Nov 2023US 2023/0346007 A1Philip Morris Products S. A.
- Methods for analyzing paper and improving the effectiveness of paper additives5 Oct 2023US 2023/0313462 A1Solenis Technologies, L.P.
Most cited
By later US patents
- Control system and method for dispensing a liquid33US 4,530,862 ASpraymation, Inc. · 1985
- Converting machine gum box32US 4,375,970 AWestvaco Corporation · 1983
- Impregnated corrugted sheets for packing boxes and method of manufacture13US 4,826,714 A1989
- Printable sheet that is ultra-smooth and recyclable, and its method of fabrication10US 9,416,495 B2Arjo Wiggins Fine Papers Limited · 2016
- Method and apparatus for coating corrugated board8US 4,668,536 AEagle-Picher Industries, Inc. · 1987