B32B 23/04
Comprising such cellulosic plastic substance as the main or only constituent of
Official title: comprising such {cellulosic plastic} substance as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a glass layer B32B17/08)}
B32B23/04 (Comprising such cellulosic plastic substance as the main or only constituent of) appears on 902 US grants and 1,388 published applications in this corpus.
Search patents in B32B- Granted patents
- 902
- Published applications
- 1,388
- Assignees
- 590
- Inventors
- 3,044
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 3 |
| 2002 | 4 | 11 |
| 2003 | 7 | 10 |
| 2004 | 8 | 15 |
| 2005 | 5 | 17 |
| 2006 | 3 | 17 |
| 2007 | 8 | 22 |
| 2008 | 4 | 12 |
| 2009 | 2 | 39 |
| 2010 | 10 | 57 |
| 2011 | 12 | 39 |
| 2012 | 17 | 32 |
| 2013 | 22 | 31 |
| 2014 | 22 | 45 |
| 2015 | 37 | 34 |
| 2016 | 27 | 57 |
| 2017 | 22 | 106 |
| 2018 | 50 | 151 |
| 2019 | 80 | 151 |
| 2020 | 98 | 114 |
| 2021 | 91 | 135 |
| 2022 | 73 | 92 |
| 2023 | 64 | 67 |
| 2024 | 71 | 56 |
| 2025 | 56 | 49 |
| 2026 | 29 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Wavelength conversion member6 Oct 2026US 12,752,518 B2Nichia Corporation
- Composite materials4 Aug 2026US 12,697,803 B2University of Leeds
- Co-extruded multi-layered cellulose-based film and a method for its manufacture and products manufactured therefrom7 Jul 2026US 12,673,480 B2
- Plastic film, plastic bag and preparation method of plastic film30 Jun 2026US 12,668,047 B2Guangzhou Argion Electric Appliance Co., Ltd.
- Degradable containment features30 Jun 2026US 12,668,396 B2Double Double D, LLC
- Laminate including transparent electroconductive film and porous film, biochip including laminate, and method for manufacturing these17 Sep 2026US 2026/0276633 A1
- A method for producing a barrier substrate, and a barrier substrate3 Sep 2026US 2026/0257452 A1Stora Enso OYJ
- Laminated biodegradable film for packaging pharmaceutical compositions20 Aug 2026US 2026/0242112 A1Boehringer Ingelheim Vetmedica GmbH
- Cellulose based composite planks13 Aug 2026US 2026/0234944 A1Columbia Insurance Company
- Composite papers and methods of making thereof6 Aug 2026US 2026/0226686 A1Eastman Chemical (China) Co., Ltd.
Most cited
By later US patents
- Osmotic system having laminated wall comprising semipermeable lamina and microporous lamina309US 4,160,452 AAlza Corporation · 1979
- Textile fabric and method of manufacturing the same157US 4,144,370 AJohnson & Johnson · 1979
- Biodegradable, liquid impervious multilayer film compositions147US 5,391,423 AThe Procter & Gamble Company · 1995
- Security paper with color mark145US 5,449,200 ADomtar Inc. · 1995
- Magnetic-type information card and method and apparatus for encoding and reading131US 3,946,206 AR. D. Products, Inc. · 1976