C08J 2423/12
Polypropene
C08J2423/12 (Polypropene) appears on 330 US grants and 576 published applications in this corpus.
Search patents in C08J- Granted patents
- 330
- Published applications
- 576
- Assignees
- 253
- Inventors
- 1,340
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 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 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 4 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 2 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 5 |
| 2012 | 3 | 3 |
| 2013 | 4 | 13 |
| 2014 | 3 | 9 |
| 2015 | 7 | 36 |
| 2016 | 21 | 38 |
| 2017 | 20 | 43 |
| 2018 | 27 | 49 |
| 2019 | 32 | 55 |
| 2020 | 29 | 35 |
| 2021 | 34 | 43 |
| 2022 | 32 | 54 |
| 2023 | 43 | 48 |
| 2024 | 29 | 57 |
| 2025 | 17 | 42 |
| 2026 | 19 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Plastic depolymerization using silica based catalysts22 Sep 2026US 12,742,122 B2Basell Poliolefine Italia S.r.l.
- Plastic recycling15 Sep 2026US 12,735,548 B2Reventas Limited
- Expanded beads comprising high melt strength polypropylene28 Jul 2026US 12,692,377 B2Sabic Global Technologies B.V.
- Polypropylene composition for HMS PP foam sheet with balanced bending resistance23 Jun 2026US 12,662,592 B2Borealis AG
- Circular economy for plastic waste to polypropylene via refinery FCC unit16 Jun 2026US 12,655,077 B2Chevron U.S.A.Inc.
- Foamable composite resin particles, method of producing the same, foamed particles, method of producing the same, foamed molded article, and automobile member1 Oct 2026US 2026/0297316 A1Sekisui Kasei Co., Ltd.
- Compositions and methods for compatibilizing polyolefins10 Sep 2026US 2026/0265468 A1RockyTech, Ltd.
- Method for producing long glass fiber-reinforced propylene resin composition pellets and method for producing injection molded body10 Sep 2026US 2026/0265474 A1Prime Polymer Co., Ltd.
- Olefin-based composition, resin molded product, and method for producing olefin-based composition10 Sep 2026US 2026/0265512 A1Toyoda Gosei Co., Ltd.
- Polypropylene composition for preparing a foam and a foam comprising the same3 Sep 2026US 2026/0258235 A1
Most cited
By later US patents
- Thermoplastic olefin building materials91US 9,359,014 B1Building Materials Investment Corporation · 2016
- Method of visbreaking polypropylene48US 4,282,076 AHercules Incorporated · 1981
- Process for improving the adhesion of paint to polyolefin surfaces47US 4,303,697 AE. I. Du Pont de Nemours and Company · 1981
- Foam and method of making44US 7,094,463 B23M Innovative Properties Company · 2006
- Polymeric material for an insulated container36US 8,883,280 B2Berry Plastics Corporation · 2014