D21H 19/80
Paper comprising more than one coating
Official title: Paper comprising more than one coating (D21H19/02 takes precedence)
D21H19/80 (Paper comprising more than one coating) appears on 615 US grants and 914 published applications in this corpus.
Search patents in D21H- Granted patents
- 615
- Published applications
- 914
- Assignees
- 417
- Inventors
- 1,989
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 7 | 0 |
| 1993 | 7 | 0 |
| 1994 | 11 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 22 | 0 |
| 1999 | 23 | 0 |
| 2000 | 15 | 0 |
| 2001 | 13 | 4 |
| 2002 | 13 | 15 |
| 2003 | 9 | 17 |
| 2004 | 8 | 23 |
| 2005 | 11 | 28 |
| 2006 | 4 | 27 |
| 2007 | 10 | 31 |
| 2008 | 8 | 36 |
| 2009 | 10 | 20 |
| 2010 | 9 | 24 |
| 2011 | 16 | 27 |
| 2012 | 11 | 28 |
| 2013 | 17 | 23 |
| 2014 | 17 | 17 |
| 2015 | 10 | 15 |
| 2016 | 14 | 27 |
| 2017 | 18 | 32 |
| 2018 | 20 | 36 |
| 2019 | 20 | 51 |
| 2020 | 29 | 48 |
| 2021 | 26 | 48 |
| 2022 | 40 | 65 |
| 2023 | 26 | 55 |
| 2024 | 46 | 69 |
| 2025 | 28 | 73 |
| 2026 | 37 | 75 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polylactide formulation for improved extrusion processing6 Oct 2026US 12,753,555 B2WestRock MWV, LLC
- Thermoformable ovenable recyclable coated cellulosic board, ovenable recyclable coated cellulosic board food vessels thermoformed therefrom, and methods for manufacturing and using thereof29 Sep 2026US 12,747,540 B2WestRock MWV, LLC
- Laminate and roll22 Sep 2026US 12,742,290 B2Toppan Holdings Inc.
- Coated paper for use as packaging material15 Sep 2026US 12,735,844 B2Neenah Gessner GmbH
- Flame-proof corrugated paperboard and method for producing same8 Sep 2026US 12,729,485 B2Rengo Co., Ltd.
- Single layer coated white kraftliner8 Oct 2026US 2026/0308847 A1
- Method for coating a hollow container comprising molded pulp8 Oct 2026US 2026/0308853 A1
- Manufacturing method of double pla printed paper cup1 Oct 2026US 2026/0297853 A1Leong Ltd
- Compostable packaging material1 Oct 2026US 2026/0297854 A1Neenah Gessner GmbH
- Coating apparatus for coating a hollow container comprising molded pulp1 Oct 2026US 2026/0297855 A1
Most cited
By later US patents
- Coated paperboards and paperboard containers having improved tactile and bulk insulation properties117US 6,740,373 B1Fort James Corporation · 2004
- Coated paperboards and paperboard containers having improved tactile and bulk insulation properties92US 6,919,111 B2Fort James Corporation · 2005
- Syntactic foam insulated container87US 5,952,068 AInsulation Dimension Corporation · 1999
- Process for applying chemical papermaking additives to web substrate85US 6,126,784 AThe Procter & Gamble Company · 2000
- Three dimensional macroscopic assemblages of randomly oriented carbon fibrils and composites containing same76US 5,691,054 AHyperion Catalysis Int'l., Inc. · 1997