D21H 13/12
From macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
Official title: from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
D21H13/12 (From macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds) appears on 319 US grants and 238 published applications in this corpus.
Search patents in D21H- Granted patents
- 319
- Published applications
- 238
- Assignees
- 213
- Inventors
- 767
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 8 | 0 |
| 1978 | 8 | 0 |
| 1979 | 11 | 0 |
| 1980 | 4 | 0 |
| 1981 | 11 | 0 |
| 1982 | 2 | 0 |
| 1983 | 7 | 0 |
| 1984 | 5 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 8 | 0 |
| 1991 | 6 | 0 |
| 1992 | 12 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 9 | 0 |
| 2000 | 6 | 0 |
| 2001 | 16 | 2 |
| 2002 | 8 | 12 |
| 2003 | 4 | 16 |
| 2004 | 9 | 7 |
| 2005 | 7 | 9 |
| 2006 | 1 | 3 |
| 2007 | 4 | 15 |
| 2008 | 3 | 6 |
| 2009 | 1 | 9 |
| 2010 | 5 | 9 |
| 2011 | 4 | 3 |
| 2012 | 5 | 14 |
| 2013 | 6 | 3 |
| 2014 | 1 | 10 |
| 2015 | 3 | 13 |
| 2016 | 4 | 6 |
| 2017 | 11 | 20 |
| 2018 | 4 | 9 |
| 2019 | 5 | 9 |
| 2020 | 5 | 11 |
| 2021 | 12 | 14 |
| 2022 | 10 | 12 |
| 2023 | 9 | 11 |
| 2024 | 8 | 3 |
| 2025 | 6 | 5 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Thermoplastic sheets and articles with variable lofting capacity26 May 2026US 12,636,852 B2Hanwha Azdel, Inc.
- Space filling material, method for manufacturing same, and space filling structure10 Mar 2026US 12,571,163 B2Kuraray Co., Ltd.
- Insulation material and method of making insulation material3 Mar 2026US 12,565,371 B2MP Global Products, L.L.C.
- Fibrous structures different fibrous elements2 Dec 2025US 12,486,618 B2The Procter & Gamble Company
- Layered fibrous structures25 Nov 2025US 12,480,258 B2The Procter & Gamble Company
- Inorganic fiber sheet23 Jul 2026US 2026/0208083 A1Tomoegawa Co., Ltd.
- Keratin material16 Jul 2026US 2026/0201146 A1Wool Research Organisation of New Zealand, Inc.
- Insulation Material And Method Of Making Insulation Material9 Jul 2026US 2026/0193014 A1MP Global Products, L.L.C.
- Layered fibrous structures30 Apr 2026US 2026/0117467 A1The Procter & Gamble Company
- Layered fibrous structures30 Apr 2026US 2026/0117468 A1The Procter & Gamble Company
Most cited
By later US patents
- Dispersible nonwoven fabric and method of making same166US 5,935,880 A1999
- Filtration structures of wet laid, bicomponent fiber148US 5,580,459 AHoechst Celanese Corporation · 1996
- Cloth-like base sheet and method for making the same144US 6,315,864 B2Kimberly-Clark Worldwide, Inc. · 2001
- Cellulose-Based medical packaging material sterilizable by oxidizing gas plasma127US 6,156,677 AKimberly-Clark Worldwide, Inc. · 2000
- High water absorbent double-recreped fibrous webs112US 5,674,590 AKimberly-Clark Tissue Company · 1997