C08K 5/529
Esters containing heterocyclic rings not representing cyclic esters of phosphoric or phosphorous
Official title: Esters containing heterocyclic rings not representing cyclic esters of phosphoric or phosphorous acids
C08K5/529 (Esters containing heterocyclic rings not representing cyclic esters of phosphoric or phosphorous) appears on 86 US grants and 78 published applications in this corpus.
Search patents in C08K- Granted patents
- 86
- Published applications
- 78
- Assignees
- 69
- Inventors
- 245
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 3 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 5 |
| 2014 | 1 | 7 |
| 2015 | 2 | 6 |
| 2016 | 8 | 5 |
| 2017 | 4 | 3 |
| 2018 | 3 | 2 |
| 2019 | 2 | 11 |
| 2020 | 6 | 9 |
| 2021 | 9 | 1 |
| 2022 | 4 | 8 |
| 2023 | 1 | 7 |
| 2024 | 1 | 5 |
| 2025 | 2 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Glass fiber reinforced polypropylene resin composition and molded article comprising the same21 Jul 2026US 12,686,747 B2Gs Caltex Corporation
- Infrared cut-off filter, solid-state image sensor filter, solid-state image sensor, and method for producing solid-state image sensor filter27 Jan 2026US 12,534,624 B2Toppan Inc.
- Polyethylene pipe23 Sep 2025US 12,421,379 B2BASF SE
- Thermoplastic resin composition and molded product using same8 Jul 2025US 12,351,715 B2Lotte Chemical Corporation
- Flame retardant mixture23 Jul 2024US 12,043,719 B2Clariant International Ltd.
- Flame retardant insulating film28 May 2026US 2026/0146150 A1Illinois Tool Works Inc.
- Process stabilizer, organic material composition, and method for stabilizing organic material29 May 2025US 2025/0171476 A1Sumitomo Chemical Company, Limited
- Functional modification of reclaimed rubber materials and use thereof in making safety gloves12 Dec 2024US 2024/0409727 A1Zhejiang Kanglongda Special Protection Technology Co., Ltd.
- Compositions and methods for protecting organic polymeric materials from discoloration due to exposure to uv-c light5 Sep 2024US 2024/0294732 A1Cytec Industries Inc.
- Aqueous water-based bonding system for flame-retardant composite23 May 2024US 2024/0165917 A1W. L. Gore & Associates, Inc.
Most cited
By later US patents
- 2,2,6,6-Tetramethyl piperidyl-4-phosphites as stabilizers for organic polymeric materials21US 4,096,114 AArgus Chemical Corporation · 1978
- N-substituted tetrahalophthalimides as flame retardants20US 4,003,862 AMichigan Chemical Corporation · 1977
- Use of phosphoroustrislactams as compatibilizing agents for polyphenylene oxide/polyester blends12US 5,037,897 AAllied-Signal Inc. · 1991
- Stabilizers for polymers and polymers stabilized thereby11US 4,210,576 AMontedison S.p.A. · 1980
- Alkylidene bisphenol phosphites and phosphates having 2,2,6,6-tetramethyl piperidinyl groups and synthetic resin composition11US 4,673,701 AAdeka Argus Chemical Co., Ltd. · 1987