C08K 3/32
Phosphorus-containing compounds
C08K3/32 (Phosphorus-containing compounds) appears on 1,447 US grants and 1,839 published applications in this corpus.
Search patents in C08K- Granted patents
- 1,447
- Published applications
- 1,839
- Assignees
- 993
- Inventors
- 4,785
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 16 | 0 |
| 1978 | 20 | 0 |
| 1979 | 11 | 0 |
| 1980 | 8 | 0 |
| 1981 | 7 | 0 |
| 1982 | 14 | 0 |
| 1983 | 9 | 0 |
| 1984 | 5 | 0 |
| 1985 | 12 | 0 |
| 1986 | 10 | 0 |
| 1987 | 11 | 0 |
| 1988 | 9 | 0 |
| 1989 | 15 | 0 |
| 1990 | 16 | 0 |
| 1991 | 18 | 0 |
| 1992 | 19 | 0 |
| 1993 | 19 | 0 |
| 1994 | 26 | 0 |
| 1995 | 12 | 0 |
| 1996 | 14 | 0 |
| 1997 | 16 | 0 |
| 1998 | 17 | 0 |
| 1999 | 26 | 0 |
| 2000 | 24 | 0 |
| 2001 | 20 | 10 |
| 2002 | 19 | 12 |
| 2003 | 12 | 14 |
| 2004 | 9 | 20 |
| 2005 | 5 | 22 |
| 2006 | 9 | 58 |
| 2007 | 12 | 42 |
| 2008 | 11 | 35 |
| 2009 | 7 | 45 |
| 2010 | 35 | 45 |
| 2011 | 30 | 61 |
| 2012 | 22 | 46 |
| 2013 | 36 | 61 |
| 2014 | 52 | 78 |
| 2015 | 48 | 82 |
| 2016 | 53 | 92 |
| 2017 | 47 | 98 |
| 2018 | 60 | 93 |
| 2019 | 72 | 128 |
| 2020 | 74 | 133 |
| 2021 | 69 | 140 |
| 2022 | 81 | 124 |
| 2023 | 87 | 124 |
| 2024 | 83 | 105 |
| 2025 | 66 | 92 |
| 2026 | 52 | 79 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polymer blends of polyamide and aliphatic polyketone6 Oct 2026US 12,753,309 B2Avient Corporation
- Positive electrode slurry, positive electrode plate, and secondary battery and battery module including such positive electrode plate6 Oct 2026US 12,755,974 B2Contemporary Amperex Technology (Hong Kong) Limited
- Method for producing a partially recycled polyaryletherketone powder by sintering29 Sep 2026US 12,746,718 B2Arkema France
- Image sensor with in-pixel background subtraction and motion detection29 Sep 2026US 12,747,338 B2OmniVision Technologies, Inc.
- Method for preparing glutaryl-bridged bis-biogenic guanidine chelate and method for preparing polybutylene succinate22 Sep 2026US 12,742,039 B2Polytex Chemical Engineering Co., Ltd.
- Reduction in benzothiazole emissions when heating benzothiazole-containing rubber8 Oct 2026US 2026/0308353 A1LANXESS Deutschland GmbH
- Treatment agent for acrylic fibers and use of the same8 Oct 2026US 2026/0308815 A1Matsumoto Yushi-Seiyaku Co., Ltd.
- Positive electrode active material layer, electrode, and solid-state battery8 Oct 2026US 2026/0312066 A1Kureha Corporation
- An intermediate composition1 Oct 2026US 2026/0297259 A1Kemira Oyj
- Methods of crosslinking a moisture curable polymeric composition1 Oct 2026US 2026/0297310 A1
Most cited
By later US patents
- Bioerodable implant composition206US 4,843,112 AThe Beth Israel Hospital Association · 1989
- Implantable bone replacement materials based on calcium phosphate ceramic material in a matrix and process for the production thereof161US 4,309,488 ABattelle-Institut e. V. · 1982
- Asbestiform crystalline calcium sodium or lithium phosphate, preparation and compositions161US 4,346,028 AMonsanto Company · 1982
- Heat sealable, flame and abrasion resistant coated fabric133US 4,284,682 A1981
- Formaldehyde-free, accelerated cure, aqueous composition for bonding glass fiber heat-resistant nonwovens129US 5,977,232 ARohm and Haas Company · 1999