C08K 5/3415
Five-membered rings
C08K5/3415 (Five-membered rings) appears on 918 US grants and 1,030 published applications in this corpus.
Search patents in C08K- Granted patents
- 918
- Published applications
- 1,030
- Assignees
- 545
- Inventors
- 2,919
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 8 | 0 |
| 1978 | 9 | 0 |
| 1979 | 4 | 0 |
| 1980 | 6 | 0 |
| 1981 | 5 | 0 |
| 1982 | 10 | 0 |
| 1983 | 15 | 0 |
| 1984 | 8 | 0 |
| 1985 | 12 | 0 |
| 1986 | 10 | 0 |
| 1987 | 11 | 0 |
| 1988 | 8 | 0 |
| 1989 | 11 | 0 |
| 1990 | 14 | 0 |
| 1991 | 11 | 0 |
| 1992 | 19 | 0 |
| 1993 | 18 | 0 |
| 1994 | 19 | 0 |
| 1995 | 16 | 0 |
| 1996 | 14 | 0 |
| 1997 | 17 | 0 |
| 1998 | 14 | 0 |
| 1999 | 13 | 0 |
| 2000 | 5 | 0 |
| 2001 | 7 | 2 |
| 2002 | 9 | 11 |
| 2003 | 6 | 10 |
| 2004 | 6 | 13 |
| 2005 | 4 | 9 |
| 2006 | 10 | 20 |
| 2007 | 4 | 17 |
| 2008 | 9 | 15 |
| 2009 | 6 | 24 |
| 2010 | 15 | 27 |
| 2011 | 9 | 25 |
| 2012 | 8 | 29 |
| 2013 | 19 | 40 |
| 2014 | 27 | 63 |
| 2015 | 45 | 102 |
| 2016 | 52 | 50 |
| 2017 | 52 | 56 |
| 2018 | 46 | 62 |
| 2019 | 33 | 65 |
| 2020 | 34 | 68 |
| 2021 | 48 | 69 |
| 2022 | 43 | 70 |
| 2023 | 45 | 64 |
| 2024 | 40 | 34 |
| 2025 | 34 | 46 |
| 2026 | 22 | 39 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Resin composition, prepreg, film provided with resin, metal foil provided with resin, metal-clad laminate, and wiring board6 Oct 2026US 12,753,301 B2Panasonic Intellectual Property Management Co., Ltd.
- Polyester film for window attachment, and polyester film layered body for window attachment29 Sep 2026US 12,747,327 B2Mitsubishi Chemical Corporation
- Thermoplastic baling strap25 Aug 2026US 12,715,667 B2D R Baling Wire Manufacturers Ltd
- Curing agents for fluoroelastomers18 Aug 2026US 12,709,658 B2Kalrez USA, LLC
- Matting polymer composition having excellent weather resistance and impact resistance, and matte sheet including the same11 Aug 2026US 12,703,766 B2Hannanotech Co., Ltd.
- Elastomer compositions comprising at least one sp2 hybridized carbon allotrope and a 2,5-disubstituted pyrrole derivative8 Oct 2026US 2026/0308352 A1Pirelli Tyre S. P. A.
- Polymer composition for moulded article8 Oct 2026US 2026/0308357 A1Borealis AG
- Article of manufacture and rubber composition containing bismaleimide1 Oct 2026US 2026/0297302 A1The Goodyear Tire & Rubber Company
- Ophthalmic lens comprising an acrylonitrile compound24 Sep 2026US 2026/0286135 A1Essilor International
- Mixture, polymer, dental polymer for 3d printing and medical product thereof17 Sep 2026US 2026/0272788 A1Pro3Dure Medical GmbH
Most cited
By later US patents
- Benzofuranone or indolinone compounds useful as stabilizers for organic materials149US 4,325,863 ASandoz Ltd. · 1982
- Benzofuran(2)one or indolin(2)one compounds useful as stabilizers for organic materials128US 4,338,244 ASandoz Ltd. · 1982
- Branched, high-molecular weight thermoplastic polycarbonates125US 4,185,009 ABayer Aktiengesellschaft · 1980
- Coupling system (white filler/diene elastomer) based on polysulphurized alkoxysilane, enamine, and guanidine derivative99US 6,420,488 B1Michelin Recherche et Technique S. A. · 2002
- Preparation of pyrrolo[3,4-c]pyrroles90US 4,579,949 ACiba-Geigy Corporation · 1986