C08K 5/5333
Esters of phosphonic acids
C08K5/5333 (Esters of phosphonic acids) appears on 505 US grants and 374 published applications in this corpus.
Search patents in C08K- Granted patents
- 505
- Published applications
- 374
- Assignees
- 283
- Inventors
- 1,233
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 25 | 0 |
| 1977 | 30 | 0 |
| 1978 | 26 | 0 |
| 1979 | 11 | 0 |
| 1980 | 14 | 0 |
| 1981 | 16 | 0 |
| 1982 | 4 | 0 |
| 1983 | 13 | 0 |
| 1984 | 12 | 0 |
| 1985 | 6 | 0 |
| 1986 | 8 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 8 | 0 |
| 1990 | 6 | 0 |
| 1991 | 9 | 0 |
| 1992 | 10 | 0 |
| 1993 | 6 | 0 |
| 1994 | 10 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 9 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 2 |
| 2002 | 3 | 3 |
| 2003 | 3 | 3 |
| 2004 | 6 | 3 |
| 2005 | 2 | 6 |
| 2006 | 2 | 11 |
| 2007 | 2 | 10 |
| 2008 | 6 | 6 |
| 2009 | 0 | 6 |
| 2010 | 8 | 9 |
| 2011 | 5 | 17 |
| 2012 | 11 | 9 |
| 2013 | 5 | 18 |
| 2014 | 10 | 19 |
| 2015 | 12 | 30 |
| 2016 | 13 | 21 |
| 2017 | 22 | 21 |
| 2018 | 14 | 27 |
| 2019 | 15 | 32 |
| 2020 | 23 | 27 |
| 2021 | 23 | 17 |
| 2022 | 14 | 23 |
| 2023 | 11 | 15 |
| 2024 | 18 | 18 |
| 2025 | 7 | 12 |
| 2026 | 8 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polymeric particles28 Jul 2026US 12,692,326 B2Life Technologies Corporation
- Method for preparing a copolyester28 Jul 2026US 12,692,345 B2Hanwha Solutions Corporation
- High crystalline olefin polymer for high speed spinning26 May 2026US 12,637,557 B2W. R. Grace & Co.-Conn.
- Liquid composition for optical filters and optical filter5 May 2026US 12,617,948 B2Nippon Sheet Glass Co., Ltd.
- Monomer mixture, resin composition, resin molded article, panel for aquariums, illuminated sign, building component, method for producing resin composition, and method for manufacturing resin cast board24 Mar 2026US 12,583,951 B2Mitsubishi Chemical Corporation
- Flame retardant, composition, and molded article1 Oct 2026US 2026/0297296 A1Adeka Corporation
- Expanded beads of polypropylene-based resin, and expanded bead molded body20 Aug 2026US 2026/0242557 A1Jsp Corporation
- Polyamide composition23 Jul 2026US 2026/0209474 A1BASF SE
- Thermoplastic resin composition and molded article formed from same2 Jul 2026US 2026/0184894 A1Teijin Limited
- Two-dimensional particle, two-dimensional particle-containing dispersion liquid, two-dimensional particle-containing composite, two-dimensional particle-containing film, and two-dimensional particle production method18 Jun 2026US 2026/0167827 A1Murata Manufacturing Co., Ltd.
Most cited
By later US patents
- Hydrophilic, highly swellable hydrogels173US 5,331,059 ACassella Aktiengesellschaft · 1994
- Flame-retardant, high-impact polycarbonate molding compounds102US 5,061,745 ABayer Aktiengesellschaft · 1991
- Flexible fire retardant multi-layer structures comprising polyolefin and polyamide layers and process for making the same89US 6,114,036 AAlliedSignal Inc. · 2000
- Increasing the molecular weight of polyesters59US 6,265,533 B1Ciba Specialty Chemicals Corporation · 2001
- Bis-phenol phosphates as clarifiers for polyolefin resins57US 4,463,113 A1984