D21H 19/62
Macromolecular organic compounds or oligomers thereof obtained otherwise than by reactions only
Official title: Macromolecular organic compounds or oligomers thereof obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
D21H19/62 (Macromolecular organic compounds or oligomers thereof obtained otherwise than by reactions only) appears on 198 US grants and 145 published applications in this corpus.
Search patents in D21H- Granted patents
- 198
- Published applications
- 145
- Assignees
- 143
- Inventors
- 538
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 7 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 10 | 0 |
| 1999 | 11 | 0 |
| 2000 | 6 | 0 |
| 2001 | 10 | 2 |
| 2002 | 3 | 2 |
| 2003 | 1 | 3 |
| 2004 | 6 | 7 |
| 2005 | 0 | 1 |
| 2006 | 1 | 4 |
| 2007 | 2 | 4 |
| 2008 | 2 | 1 |
| 2009 | 2 | 4 |
| 2010 | 3 | 9 |
| 2011 | 2 | 5 |
| 2012 | 0 | 6 |
| 2013 | 6 | 6 |
| 2014 | 3 | 8 |
| 2015 | 4 | 7 |
| 2016 | 6 | 2 |
| 2017 | 6 | 8 |
| 2018 | 2 | 9 |
| 2019 | 7 | 3 |
| 2020 | 6 | 10 |
| 2021 | 5 | 8 |
| 2022 | 6 | 11 |
| 2023 | 3 | 7 |
| 2024 | 4 | 7 |
| 2025 | 3 | 7 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polylactide formulation for improved extrusion processing6 Oct 2026US 12,753,555 B2WestRock MWV, LLC
- Cellulosic structures for high barrier applications19 May 2026US 12,630,979 B2WestRock MWV, LLC
- Impermeabilization treatment of paper or cardboard and impermeable paper or cardboard thus obtained31 Mar 2026US 12,590,415 B2Qwarzo S.P.A.
- Preparation method of eco-friendly long-lasting heat-sensitive paper13 Jan 2026US 12,522,982 B2Jiangxi Heshuofeng New Material Co., Ltd.
- Laminate and food packaging material19 Aug 2025US 12,392,089 B2Mitsui Chemicals, Inc.
- Single layer coated white kraftliner8 Oct 2026US 2026/0308847 A1
- Impermeabilization treatment of paper or cardboard and impermeable paper or cardboard thus obtained6 Aug 2026US 2026/0226687 A1Qwarzo S.P.A.
- Resin composition for t-die extrusion molding23 Jul 2026US 2026/0209510 A1Kaneka Corporation
- Coating agent and laminate12 Feb 2026US 2026/0042931 A1Mitsui Chemicals, Inc.
- Base paper for vapor deposition paper, vapor deposition paper, packaging bag, laminate, and paper container for liquid20 Nov 2025US 2025/0354334 A1Oji Holdings Corporation
Most cited
By later US patents
- Paper having a melt-stable lactide polymer coating and process for manufacture thereof244US 5,475,080 ACargill, Incorporated · 1995
- Melt-stable amorphous lactide polymer film and process for manufacturing thereof217US 5,484,881 ACargill, Incorporated · 1996
- Melt-stable semi-crystalline lactide polymer film and process for manufacture thereof191US 5,536,807 ACargill, Incorporated · 1996
- Polyurethane thickeners in latex compositions173US 4,079,028 ARohm and Haas Company · 1978
- Ink jet recording sheet having a bicomponent cationic recording surface162US 4,554,181 AThe Mead Corporation · 1985