C08K 7/22
Expanded, porous or hollow particles
C08K7/22 (Expanded, porous or hollow particles) appears on 1,229 US grants and 1,800 published applications in this corpus.
Search patents in C08K- Granted patents
- 1,229
- Published applications
- 1,800
- Assignees
- 967
- Inventors
- 4,368
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 5 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 8 | 0 |
| 1986 | 7 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 12 | 0 |
| 1990 | 5 | 0 |
| 1991 | 10 | 0 |
| 1992 | 11 | 0 |
| 1993 | 11 | 0 |
| 1994 | 9 | 0 |
| 1995 | 6 | 0 |
| 1996 | 12 | 0 |
| 1997 | 6 | 0 |
| 1998 | 12 | 0 |
| 1999 | 13 | 0 |
| 2000 | 6 | 0 |
| 2001 | 14 | 5 |
| 2002 | 13 | 12 |
| 2003 | 10 | 30 |
| 2004 | 10 | 31 |
| 2005 | 16 | 38 |
| 2006 | 15 | 33 |
| 2007 | 13 | 49 |
| 2008 | 14 | 47 |
| 2009 | 16 | 40 |
| 2010 | 29 | 76 |
| 2011 | 26 | 75 |
| 2012 | 33 | 62 |
| 2013 | 31 | 67 |
| 2014 | 39 | 78 |
| 2015 | 58 | 115 |
| 2016 | 58 | 103 |
| 2017 | 84 | 87 |
| 2018 | 59 | 101 |
| 2019 | 94 | 102 |
| 2020 | 68 | 107 |
| 2021 | 63 | 97 |
| 2022 | 55 | 107 |
| 2023 | 67 | 100 |
| 2024 | 67 | 88 |
| 2025 | 61 | 87 |
| 2026 | 44 | 63 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Boron nitride particles, resin composition, and method for producing resin composition6 Oct 2026US 12,753,075 B2Denka Company Limited
- Boron nitride particles, resin composition, and method for producing resin composition22 Sep 2026US 12,742,057 B2Denka Company Limited
- Curable film composition, curable film, and cured product thereof22 Sep 2026US 12,742,059 B2Thintronics, Inc.
- Anti-reflection film22 Sep 2026US 12,742,910 B2Daicel Corporation
- Adhesive tape with polyurethane carrier25 Aug 2026US 12,716,011 B2Tesa SE
- Curable composition and cured compositions derived therefrom1 Oct 2026US 2026/0297329 A1Rogers Corporation
- Heat dissipation composition, and electrical insulation-heat dissipation body and heat dissipation structure comprising heat dissipation composition24 Sep 2026US 2026/0286144 A1Enplus Co.,Ltd.
- Uv resistant surfacing materials for composite parts24 Sep 2026US 2026/0286168 A1Cytec Industries Inc.
- Hollow silica particles17 Sep 2026US 2026/0274691 A1Tokuyama Corporation
- Microporous powder composition and insulation product17 Sep 2026US 2026/0275081 A1Prtc NV
Most cited
By later US patents
- Single-wall carbon nanotube-polymer composites190US 6,426,134 B1E. I. Du Pont de Nemours and Company · 2002
- Glass bubbles of increased collapse strength134US 4,391,646 AMinnesota Mining and Manufacturing Company · 1983
- Nanocomposite dielectrics130US 6,762,237 B2Eikos, Inc. · 2004
- Paste compositions105US 5,173,457 AJohnson Matthey Public Limited Company · 1992
- Electrically conductive compositions and method of manufacture thereof93US 7,354,988 B2General Electric Company · 2008