D21H 21/56
Foam
D21H21/56 (Foam) appears on 99 US grants and 135 published applications in this corpus.
Search patents in D21H- Granted patents
- 99
- Published applications
- 135
- Assignees
- 69
- Inventors
- 285
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 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 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 5 |
| 2003 | 3 | 13 |
| 2004 | 5 | 1 |
| 2005 | 4 | 3 |
| 2006 | 4 | 5 |
| 2007 | 1 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 2 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 2 |
| 2014 | 1 | 1 |
| 2015 | 0 | 9 |
| 2016 | 1 | 5 |
| 2017 | 2 | 6 |
| 2018 | 3 | 8 |
| 2019 | 8 | 5 |
| 2020 | 4 | 10 |
| 2021 | 8 | 4 |
| 2022 | 5 | 8 |
| 2023 | 4 | 13 |
| 2024 | 8 | 12 |
| 2025 | 8 | 8 |
| 2026 | 3 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Foam-based manufacturing system and process14 Apr 2026US 12,601,113 B2Kimberly-Clark Worldwide, Inc.
- Paper or paperboard coated with a foam coating layer comprising nanocellulose3 Feb 2026US 12,540,440 B2Stora Enso OYJ
- Clothing item including at least one three-dimensional contour, and method of making the same6 Jan 2026US 12,515,419 B2Simplifyber, Inc.
- Absorbent articles and methods for manufacturing same14 Oct 2025US 12,442,139 B2Kimberly-Clark Worldwide, Inc.
- Composite sheet and manufacturing method for a foamed decorative sheet free of PVC and plasticizers5 Aug 2025US 12,377,634 B2Dg Dimense, Uab
- Packing material and manufacturing method of packing material13 Aug 2026US 2026/0234872 A1Sony Group Corporation
- Foam-Based Manufacturing System and Process6 Aug 2026US 2026/0226679 A1Kimberly-Clark Worldwide, Inc.
- Method for producing a solid cellulose foam, a solid cellulose foam, and use thereof6 Aug 2026US 2026/0226684 A1Stora Enso OYJ
- Clothing item including at least one three-dimensional contour, and method of making the same30 Jul 2026US 2026/0216967 A1Simplifyber, Inc.
- Foam-Based Manufacturing System and Process23 Jul 2026US 2026/0210038 A1Kimberly-Clark Worldwide, Inc.
Most cited
By later US patents
- Methods of treating subterranean zones penetrated by well bores79US 6,767,867 B2Halliburton Energy Services.Inc. · 2004
- Foams for treating fabrics67US 4,099,913 AUnion Carbide Corporation · 1978
- Beverage and food containers, inwardly directed foam56US 7,074,466 B2Appleton Papers Inc. · 2006
- Process for the impregnation of a wet fiber web with a heat sensitized foamed latex binder46US 4,018,647 AChemische Industrie AKU-Goodrick B.V. · 1977
- Foam coating of paper employing a hydrolyzed protein foaming agent45US 4,184,914 A1980