C08K 5/1535
Five-membered rings
C08K5/1535 (Five-membered rings) appears on 498 US grants and 579 published applications in this corpus.
Search patents in C08K- Granted patents
- 498
- Published applications
- 579
- Assignees
- 382
- Inventors
- 1,585
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 7 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 9 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 8 | 0 |
| 1999 | 11 | 0 |
| 2000 | 6 | 0 |
| 2001 | 8 | 3 |
| 2002 | 13 | 4 |
| 2003 | 5 | 7 |
| 2004 | 5 | 5 |
| 2005 | 5 | 12 |
| 2006 | 5 | 6 |
| 2007 | 1 | 8 |
| 2008 | 5 | 13 |
| 2009 | 2 | 15 |
| 2010 | 3 | 18 |
| 2011 | 3 | 9 |
| 2012 | 6 | 20 |
| 2013 | 18 | 30 |
| 2014 | 20 | 47 |
| 2015 | 19 | 47 |
| 2016 | 29 | 51 |
| 2017 | 30 | 27 |
| 2018 | 34 | 25 |
| 2019 | 16 | 48 |
| 2020 | 37 | 41 |
| 2021 | 28 | 31 |
| 2022 | 17 | 21 |
| 2023 | 23 | 20 |
| 2024 | 24 | 33 |
| 2025 | 10 | 23 |
| 2026 | 8 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Liquid compositions, uses and method of making the same25 Aug 2026US 12,714,981 B1Stewart Superabsorbents, LLC
- Bio-based coalescing solvents2 Jun 2026US 12,644,004 B2Battelle Memorial Institute
- Method for manufacturing low-viscosity hardener14 Apr 2026US 12,600,706 B2Nan Ya Plastics Corporation
- Composite particle and use thereof in optical filtration7 Apr 2026US 12,595,356 B2Coloursmith Labs Inc.
- Adhesive comprising polyvinyl acetate and a mixture of glucose and fructose17 Mar 2026US 12,577,440 B2Cargill, Incorporated
- Method for preparing biodegradable resin composition using composite compatibilizer and biomass-based biodegradable resin composition prepared thereby8 Oct 2026US 2026/0308342 A1Daesang Corporation
- Thermoplastic composition, method for the manufacture thereof, and articles made therefrom8 Oct 2026US 2026/0308376 A1Shpp Global Technologies B.V.
- Vinyl ester resin composition and method for producing electrical appliance insulator using same24 Sep 2026US 2026/0290667 A1Resonac Corporation
- Molded body, downhole tool member, and downhole tool17 Sep 2026US 2026/0275103 A1Kureha Corporation
- Asphalt composition27 Aug 2026US 2026/0250511 A1Kao Corporation
Most cited
By later US patents
- Benzofuranone or indolinone compounds useful as stabilizers for organic materials149US 4,325,863 ASandoz Ltd. · 1982
- Water-absorbing agent and process for producing the same146US 6,809,158 B2Nippon Shokubai Co., Ltd. · 2004
- Benzofuran(2)one or indolin(2)one compounds useful as stabilizers for organic materials128US 4,338,244 ASandoz Ltd. · 1982
- 3-phenylbenzofuran-2-ones120US 5,175,312 ACiba-Geigy Corporation · 1992
- Golf club head97US 4,568,088 ASumitomo Rubber Industries, Ltd. · 1986