D21H 27/32
With materials applied between the sheets
Official title: with materials applied between the sheets (attaching together paper or cardboard sheets B31F5/00; adhesives C09J)
D21H27/32 (With materials applied between the sheets) appears on 297 US grants and 380 published applications in this corpus.
Search patents in D21H- Granted patents
- 297
- Published applications
- 380
- Assignees
- 193
- Inventors
- 828
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 6 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 6 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 10 | 0 |
| 1999 | 5 | 0 |
| 2000 | 9 | 0 |
| 2001 | 6 | 1 |
| 2002 | 3 | 5 |
| 2003 | 3 | 9 |
| 2004 | 4 | 11 |
| 2005 | 2 | 14 |
| 2006 | 2 | 8 |
| 2007 | 5 | 17 |
| 2008 | 1 | 10 |
| 2009 | 3 | 6 |
| 2010 | 7 | 12 |
| 2011 | 6 | 9 |
| 2012 | 3 | 4 |
| 2013 | 7 | 10 |
| 2014 | 6 | 6 |
| 2015 | 3 | 14 |
| 2016 | 6 | 8 |
| 2017 | 7 | 23 |
| 2018 | 9 | 14 |
| 2019 | 13 | 21 |
| 2020 | 20 | 24 |
| 2021 | 18 | 28 |
| 2022 | 15 | 35 |
| 2023 | 22 | 31 |
| 2024 | 20 | 28 |
| 2025 | 19 | 18 |
| 2026 | 8 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Coreless rolls of a tissue paper product and methods of manufacturing coreless rolls4 Aug 2026US 12,698,597 B2Essity Hygiene and Health Aktiebolag
- Coreless rolls of a tissue paper product and methods of manufacturing coreless rolls7 Jul 2026US 12,674,283 B2Essity Hygiene and Health Aktiebolag
- Packaging material for tobacco products and package for tobacco products16 Jun 2026US 12,654,431 B2Japan Tobacco Inc.
- Multi-layered product having an embossed interior layer and a method for making the product7 Apr 2026US 12,594,740 B2American Custom Converting, L.L.C.
- Paper aimed at forming a u-straw31 Mar 2026US 12,588,777 B2Ahlstrom Oyj
- Multi-layered product having an embossed interior layer and a method for making the product13 Aug 2026US 2026/0233486 A1American Custom Converting, L.L.C.
- Packing material and manufacturing method of packing material13 Aug 2026US 2026/0234872 A1Sony Group Corporation
- A method for manufacturing a paper or paperboard based packaging laminate6 Aug 2026US 2026/0225357 A1Stora Enso OYJ
- Adhesive-free engineered plant materials, and methods for fabrication thereof16 Jul 2026US 2026/0200213 A1University of Maryland, College Park
- Multilayer deep-drawable packaging material2 Jul 2026US 2026/0184055 A1Felix Schoeller GmbH & Co. KG
Most cited
By later US patents
- Substrate for wallboard joint tape and process for making same802US 10,106,932 B2International Paper Company · 2018
- Antimicrobial compositions comprising a benzoic acid analog and a metal salt342US 6,294,186 B12001
- High strength hydroentangled nonwoven fabric194US 4,808,467 AJames River Corporation of Virginia · 1989
- Multi-ply absorbent wiping product having relatively inextensible center ply bonded to highly extensible outer plies172US 3,953,638 AThe Procter & Gamble Company · 1976
- Security paper with color mark145US 5,449,200 ADomtar Inc. · 1995