C08L 71/12
Polyphenylene oxides
C08L71/12 (Polyphenylene oxides) appears on 1,861 US grants and 1,358 published applications in this corpus.
Search patents in C08L- Granted patents
- 1,861
- Published applications
- 1,358
- Assignees
- 430
- Inventors
- 3,163
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 14 | 0 |
| 1978 | 38 | 0 |
| 1979 | 18 | 0 |
| 1980 | 13 | 0 |
| 1981 | 19 | 0 |
| 1982 | 26 | 0 |
| 1983 | 28 | 0 |
| 1984 | 23 | 0 |
| 1985 | 25 | 0 |
| 1986 | 19 | 0 |
| 1987 | 25 | 0 |
| 1988 | 31 | 0 |
| 1989 | 51 | 0 |
| 1990 | 50 | 0 |
| 1991 | 64 | 0 |
| 1992 | 96 | 0 |
| 1993 | 69 | 0 |
| 1994 | 62 | 0 |
| 1995 | 47 | 0 |
| 1996 | 39 | 0 |
| 1997 | 28 | 0 |
| 1998 | 41 | 0 |
| 1999 | 41 | 0 |
| 2000 | 40 | 0 |
| 2001 | 33 | 12 |
| 2002 | 49 | 47 |
| 2003 | 32 | 60 |
| 2004 | 39 | 58 |
| 2005 | 38 | 60 |
| 2006 | 32 | 44 |
| 2007 | 37 | 63 |
| 2008 | 23 | 56 |
| 2009 | 35 | 55 |
| 2010 | 39 | 48 |
| 2011 | 34 | 32 |
| 2012 | 34 | 44 |
| 2013 | 35 | 43 |
| 2014 | 47 | 58 |
| 2015 | 27 | 30 |
| 2016 | 32 | 51 |
| 2017 | 27 | 43 |
| 2018 | 36 | 63 |
| 2019 | 43 | 64 |
| 2020 | 49 | 72 |
| 2021 | 48 | 63 |
| 2022 | 35 | 58 |
| 2023 | 41 | 73 |
| 2024 | 45 | 66 |
| 2025 | 26 | 54 |
| 2026 | 22 | 41 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hollow fiber membrane material for high-humidification hydrogen fuel cell humidifier and preparation method and application thereof6 Oct 2026US 12,753,530 B2University of Electronic Science and Technology of China
- Resin composition and article made therefrom29 Sep 2026US 12,747,355 B2Elite Material Co., Ltd.
- Epoxy composition containing copolyamide and block copolymer with polyamide and polyether blocks22 Sep 2026US 12,742,068 B2Zephyros, Inc.
- Resin composition and product made therefrom1 Sep 2026US 12,723,155 B2Elite Material Co., Ltd.
- Resin composition18 Aug 2026US 12,709,682 B2Ajinomoto Co., Inc.
- Elastic sulfonated styrene diene block copolymers8 Oct 2026US 2026/0308343 A1Rensselaer Polytechnic Institute
- Resin Composition and Use Thereof8 Oct 2026US 2026/0308375 A1Tokuyama Corporation
- Thermoplastic composition, method for the manufacture thereof, and articles made therefrom8 Oct 2026US 2026/0308376 A1Shpp Global Technologies B.V.
- Thermoplastic composition, articles prepared therefrom, and method for the manufacture thereof24 Sep 2026US 2026/0286129 A1Shpp Global Technologies B.V.
- Resin composition, prepreg, metal-clad laminate, and method for producing same27 Aug 2026US 2026/0250505 A1AGC Inc.
Most cited
By later US patents
- Para-alkylstyrene/isoolefin copolymers and functionalized copolymers thereof188US 5,162,445 AExxon Chemical Patents Inc. · 1992
- Resin compositions177US 4,315,086 ASumitomo Chemical Company, Limited · 1982
- Prosthesis with low stiffness factor132US 5,176,710 AOrthopaedic Research Institute, Inc. · 1993
- Conductive polymer compositions and methods of manufacture thereof98US 6,528,572 B1General Electric Company · 2003
- Polyphenylene ether-polyamide blends96US 4,600,741 AGeneral Electric Company · 1986