D21H 15/08
Flakes
Official title: Flakes (D21H13/44 takes precedence)
D21H15/08 (Flakes) appears on 20 US grants and 22 published applications in this corpus.
Search patents in D21H- Granted patents
- 20
- Published applications
- 22
- Assignees
- 19
- Inventors
- 60
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 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 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 2 |
| 2016 | 0 | 0 |
| 2017 | 2 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 3 |
| 2021 | 0 | 3 |
| 2022 | 2 | 2 |
| 2023 | 3 | 2 |
| 2024 | 3 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Barrier-coated cellulose-based substrate, laminated packaging material and packaging container comprising the cellulose-based substrate2 Jun 2026US 12,643,724 B2Tetra Laval Holdings & Finance S. A.
- Optically variable security devices21 Jan 2025US 12,204,120 B2Viavi Solutions Inc.
- Method of manufacturing a graphene/graphehe oxide layer and a graphene/graphehe oxide-coated support22 Oct 2024US 12,122,677 B2Ahlstrom Oyj
- Biodegradable container14 May 2024US 11,981,488 B2
- Precursor sheet for fuel cell separator, and fuel cell separator26 Mar 2024US 11,942,666 B2Nisshinbo Chemical Inc.
- Method of manufacturing a graphene/graphehe oxide layer and a graphene/graphehe oxide-coated support2 Jan 2025US 2025/0002353 A1Ahlstrom Oyj
- Precursor sheet for fuel cell separator, and fuel cell separator8 Feb 2024US 2024/0047705 A1Nisshinbo Chemical Inc.
- Barrier-coated cellulose-based substrate, laminated packaging material and packaging container comprising the cellulose-based substrate25 Jan 2024US 2024/0025610 A1Tetra Laval Holdings & Finance S. A.
- Optically variable security devices28 Sep 2023US 2023/0305202 A1Viavi Solutions Inc.
- Paper comprising microfilaments18 May 2023US 2023/0151548 A1Teijin Aramid B.V.
Most cited
By later US patents
- Pulp flaker17US 7,291,244 B2Weyerhaeuser Company · 2007
- Inorganic substance composition and process for producing same13US 4,049,593 AMitsubishi Rayon Co., Ltd. · 1977
- Mold-resistant gypsum panel paper7US 8,617,718 B2United States Gypsum Company · 2013
- Process for continuously producing composite porous flakes6US 3,944,639 AMitsubishi Rayon Co., Ltd. · 1976
- Tough durable imaging cellulose base material4US 6,207,362 B1Eastman Kodak Company · 2001