C08J 2323/12
Polypropene
C08J2323/12 (Polypropene) appears on 1,423 US grants and 2,213 published applications in this corpus.
Search patents in C08J- Granted patents
- 1,423
- Published applications
- 2,213
- Assignees
- 912
- Inventors
- 5,053
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 8 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 11 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 8 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 15 | 0 |
| 1994 | 8 | 0 |
| 1995 | 11 | 0 |
| 1996 | 10 | 0 |
| 1997 | 12 | 0 |
| 1998 | 3 | 0 |
| 1999 | 10 | 0 |
| 2000 | 20 | 0 |
| 2001 | 19 | 8 |
| 2002 | 18 | 15 |
| 2003 | 19 | 21 |
| 2004 | 8 | 27 |
| 2005 | 14 | 26 |
| 2006 | 14 | 26 |
| 2007 | 9 | 22 |
| 2008 | 11 | 22 |
| 2009 | 13 | 36 |
| 2010 | 10 | 33 |
| 2011 | 15 | 41 |
| 2012 | 20 | 29 |
| 2013 | 20 | 63 |
| 2014 | 28 | 52 |
| 2015 | 46 | 124 |
| 2016 | 49 | 119 |
| 2017 | 68 | 139 |
| 2018 | 79 | 159 |
| 2019 | 99 | 157 |
| 2020 | 109 | 148 |
| 2021 | 91 | 145 |
| 2022 | 107 | 170 |
| 2023 | 97 | 181 |
| 2024 | 104 | 196 |
| 2025 | 92 | 138 |
| 2026 | 84 | 116 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas barrier laminate, packaging material, packaging body, and packaged article6 Oct 2026US 12,753,285 B2Toppan Inc.
- Polyolefin resin foam sheet and laminate6 Oct 2026US 12,753,287 B2Toray Industries, Inc.
- Combined washing/delamination process for multilayer film-containing recycling streams29 Sep 2026US 12,747,331 B2Borealis AG
- Water soluble polymer blend compositions15 Sep 2026US 12,735,546 B2Interfacial Consultants LLC
- Process of recycled polypropylene15 Sep 2026US 12,735,547 B2Nexam Chemical AB
- Bio-assimilation master batch composition, processes for producing polymeric bioassimilating material therefrom, and products produced therefrom8 Oct 2026US 2026/0308339 A1Smart Plastic Technologies, LLC
- Chemical foaming of interior components8 Oct 2026US 2026/0308345 A1GM Global Technology Operations LLC
- Method for making a molded article8 Oct 2026US 2026/0308362 A1Milliken & Company
- Method for producing foam blow molded body, and foam blow molded body8 Oct 2026US 2026/0308367 A1Jsp Corporation
- Pre-depolymerization Hollow Shaft Feed Screw1 Oct 2026US 2026/0296794 A1
Most cited
By later US patents
- Isotactic propylene copolymers, their preparation and use180US 6,960,635 B2Dow Global Technologies LLC · 2005
- Process for adjusting WVTR and other properties of a polyolefin film117US 6,258,308 B1Exxon Chemical Patents Inc. · 2001
- Barrier coating113US 5,654,054 ABecton, Dickinson and Company · 1997
- Polypropylene foam sheets102US 5,116,881 AJames River Corporation of Virginia · 1992
- Biaxially-oriented metallocene-based polypropylene films100US 6,090,325 AFina Technology, Inc. · 2000