C08J 2323/22
Copolymers of isobutene
Official title: Copolymers of isobutene; butyl rubber
C08J2323/22 (Copolymers of isobutene) appears on 70 US grants and 127 published applications in this corpus.
Search patents in C08J- Granted patents
- 70
- Published applications
- 127
- Assignees
- 55
- Inventors
- 254
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 3 |
| 2010 | 0 | 2 |
| 2011 | 0 | 2 |
| 2012 | 1 | 3 |
| 2013 | 1 | 2 |
| 2014 | 1 | 4 |
| 2015 | 2 | 10 |
| 2016 | 5 | 15 |
| 2017 | 10 | 12 |
| 2018 | 5 | 10 |
| 2019 | 8 | 8 |
| 2020 | 11 | 8 |
| 2021 | 5 | 9 |
| 2022 | 5 | 4 |
| 2023 | 3 | 7 |
| 2024 | 2 | 7 |
| 2025 | 2 | 8 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Curable composition, adhesive, and method of making the same6 Oct 2026US 12,753,297 B23M Innovative Properties Company
- Encapsulation film22 Sep 2026US 12,742,064 B2LG Chem.Ltd.
- Encapsulation composition27 Jan 2026US 12,534,593 B2LG Chem.Ltd.
- Multi-layer golf balls with increased interlayer adhesion6 Jan 2026US 12,515,106 B2Acushnet Company
- Stator compound having an azide cured elastomeric base and stators and downhole motors using the same5 Aug 2025US 12,378,371 B2PV Fluid Products, Inc.
- Copolymer composition, method for producing same, and molded article obtained using copolymer composition10 Sep 2026US 2026/0265433 A1Kuraray Co., Ltd.
- Multi-layer golf balls with increased interlayer adhesion7 May 2026US 2026/0124503 A1Acushnet Company
- Refrigerant-transporting hose and manufacturing method thereof7 May 2026US 2026/0126137 A1
- Boron Nitride - Polymer Binder Systems for Protection of Reaction Sensitive Ceramics During Sintering30 Apr 2026US 2026/0117043 A1
- Copolymer, method for producing copolymer, and resin composition containing copolymer26 Feb 2026US 2026/0055223 A1Kuraray Co., Ltd.
Most cited
By later US patents
- Self-sealing tire sealant and pneumatic vehicle tire14US 9,802,446 B2Continental Reifen Deutschland GmbH · 2017
- Anti-agglomerants for the rubber industry11US 10,611,886 B2Arlanxeo Singapore Pte. Ltd. · 2020
- Rubbers with tunable levels of metal containing anti-agglomerants9US 10,000,632 B2Arlanxeo Singapore Pte. Ltd. · 2018
- Anti-agglomerants for polyisobutylene production9US 10,106,656 B2Arlanxeo Canada Inc. · 2018
- Cold seal release film with improved scuff resistance6US 7,175,906 B2Applied Extrusion Technologies, Inc. · 2007