C08K 3/28
Nitrogen-containing compounds
C08K3/28 (Nitrogen-containing compounds) appears on 623 US grants and 916 published applications in this corpus.
Search patents in C08K- Granted patents
- 623
- Published applications
- 916
- Assignees
- 521
- Inventors
- 2,345
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 12 | 0 |
| 1978 | 7 | 0 |
| 1979 | 10 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 6 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 5 | 5 |
| 2003 | 1 | 7 |
| 2004 | 7 | 9 |
| 2005 | 8 | 16 |
| 2006 | 2 | 11 |
| 2007 | 1 | 8 |
| 2008 | 2 | 7 |
| 2009 | 4 | 8 |
| 2010 | 5 | 16 |
| 2011 | 5 | 11 |
| 2012 | 5 | 15 |
| 2013 | 3 | 19 |
| 2014 | 10 | 33 |
| 2015 | 19 | 51 |
| 2016 | 35 | 50 |
| 2017 | 31 | 54 |
| 2018 | 37 | 57 |
| 2019 | 27 | 78 |
| 2020 | 59 | 69 |
| 2021 | 42 | 69 |
| 2022 | 42 | 67 |
| 2023 | 55 | 72 |
| 2024 | 41 | 81 |
| 2025 | 39 | 55 |
| 2026 | 28 | 47 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for manufacturing perfluoroelastomer aqueous dispersion, composition, crosslinkable composition, and crosslinked product22 Sep 2026US 12,742,025 B2Daikin Industries, Ltd.
- Preparation method for Ag and g-C3N4 co-modified ZnO nanocomposite material using polymer network gel method1 Sep 2026US 12,723,144 B2Southwest Minzu University
- Corrosion resistant structure18 Aug 2026US 12,709,688 B2Industrial Technology Research Institute
- Wear resistant coating, method of manufacture thereof and articles comprising the same11 Aug 2026US 12,703,782 B2Rtx Corporation
- Two-layer dielectric coating11 Aug 2026US 12,706,311 B2PPG Industries Ohio, Inc.
- Thermal radical curable thermoconductive silicone composition, and method for producing same8 Oct 2026US 2026/0308329 A1Shin-Etsu Chemical Co., Ltd.
- An intermediate composition1 Oct 2026US 2026/0297259 A1Kemira Oyj
- Method for producing polyolefin-based resin expanded beads and polyolefin-based resin expanded beads1 Oct 2026US 2026/0297276 A1Jsp Corporation
- Resin Composition1 Oct 2026US 2026/0297295 A1Tokuyama Corporation
- Resin composition and article made therefrom1 Oct 2026US 2026/0297327 A1Elite Material Co., Ltd.
Most cited
By later US patents
- Polymeric material that releases nitric oxide186US 5,994,444 AMedtronic, Inc. · 1999
- Thermally conductive elastomer97US 5,194,480 AW. R. Grace & Co.-Conn. · 1993
- Antimicrobial latex composition95US 4,902,503 AUnitika Ltd. · 1990
- Thermally conductive organosiloxane compositions67US 5,011,870 ADow Corning Corporation · 1991
- Thermally conductive gel materials56US 4,852,646 ARaychem Corporation · 1989