C08K 5/52
Phosphorus bound to oxygen only
C08K5/52 (Phosphorus bound to oxygen only) appears on 2,910 US grants and 3,273 published applications in this corpus.
Search patents in C08K- Granted patents
- 2,910
- Published applications
- 3,273
- Assignees
- 1,147
- Inventors
- 7,642
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 59 | 0 |
| 1977 | 34 | 0 |
| 1978 | 59 | 0 |
| 1979 | 30 | 0 |
| 1980 | 41 | 0 |
| 1981 | 40 | 0 |
| 1982 | 33 | 0 |
| 1983 | 31 | 0 |
| 1984 | 28 | 0 |
| 1985 | 41 | 0 |
| 1986 | 23 | 0 |
| 1987 | 32 | 0 |
| 1988 | 21 | 0 |
| 1989 | 35 | 0 |
| 1990 | 25 | 0 |
| 1991 | 52 | 0 |
| 1992 | 42 | 0 |
| 1993 | 40 | 0 |
| 1994 | 50 | 0 |
| 1995 | 43 | 0 |
| 1996 | 39 | 0 |
| 1997 | 46 | 0 |
| 1998 | 35 | 0 |
| 1999 | 37 | 0 |
| 2000 | 33 | 0 |
| 2001 | 37 | 13 |
| 2002 | 42 | 51 |
| 2003 | 40 | 63 |
| 2004 | 56 | 82 |
| 2005 | 37 | 62 |
| 2006 | 35 | 121 |
| 2007 | 39 | 87 |
| 2008 | 37 | 77 |
| 2009 | 50 | 94 |
| 2010 | 60 | 113 |
| 2011 | 80 | 118 |
| 2012 | 59 | 102 |
| 2013 | 71 | 145 |
| 2014 | 92 | 173 |
| 2015 | 82 | 176 |
| 2016 | 115 | 167 |
| 2017 | 128 | 164 |
| 2018 | 113 | 174 |
| 2019 | 120 | 169 |
| 2020 | 120 | 199 |
| 2021 | 127 | 175 |
| 2022 | 104 | 157 |
| 2023 | 93 | 170 |
| 2024 | 100 | 166 |
| 2025 | 67 | 140 |
| 2026 | 57 | 115 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Nucleating agent composition, olefin-based resin composition, molded article thereof, and method for producing olefin-based resin composition15 Sep 2026US 12,735,514 B2Adeka Corporation
- Additive composition and use thereof, condensation polymer composition, molding compound and molding compounds produced therefrom, and molded parts and use thereof8 Sep 2026US 12,729,283 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Crystal nucleating agent composition for polyolefin resin, and polyolefin resin composition including said crystal nucleating agent composition8 Sep 2026US 12,729,286 B2New Japan Chemical Co., Ltd.
- Copolyetherester1 Sep 2026US 12,723,153 B2Celanese Polymers Holding, Inc.
- Diaphragm for miniature sound-generating device, and miniature sound-generating device25 Aug 2026US 12,720,262 B2Goertek Inc.
- Composite material containing wood-based fibers and having high impact strength8 Oct 2026US 2026/0307303 A1
- Foamable Polyurethane Composition Comprising a Fatty Amide8 Oct 2026US 2026/0308307 A1Henkel AG & Co. KGaA
- Polycarbonate-based resin composition and molded article8 Oct 2026US 2026/0308318 A1Idemitsu Kosan Co., Ltd.
- Flame retardant polymeric compositions8 Oct 2026US 2026/0308393 A1
- Treatment agent for acrylic fibers and use of the same8 Oct 2026US 2026/0308815 A1Matsumoto Yushi-Seiyaku Co., Ltd.
Most cited
By later US patents
- Method of post-polymerization stabilization of high activity catalysts in continuous polyethylene terephthalate production155US 5,898,058 AWellman, Inc. · 1999
- Polymer mixture having aromatic polycarbonate, styrene I containing copolymer and/or graft polymer and a flame-retardant, articles formed therefrom120US 5,204,394 AGeneral Electric Company · 1993
- Reduced density article119US 10,087,556 B2Sabic Global Technologies B.V. · 2018
- Flame-retardant, high-impact polycarbonate molding compounds102US 5,061,745 ABayer Aktiengesellschaft · 1991
- Crystalline synthetic resin composition98US 5,342,868 AAsahi Denka Kogyo Kabushiki Kaisha · 1994