C08K 3/26
Carbonates
Official title: Carbonates; Bicarbonates
C08K3/26 (Carbonates) appears on 2,193 US grants and 2,989 published applications in this corpus.
Search patents in C08K- Granted patents
- 2,193
- Published applications
- 2,989
- Assignees
- 1,387
- Inventors
- 7,061
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 33 | 0 |
| 1977 | 17 | 0 |
| 1978 | 25 | 0 |
| 1979 | 17 | 0 |
| 1980 | 8 | 0 |
| 1981 | 20 | 0 |
| 1982 | 6 | 0 |
| 1983 | 15 | 0 |
| 1984 | 15 | 0 |
| 1985 | 13 | 0 |
| 1986 | 14 | 0 |
| 1987 | 13 | 0 |
| 1988 | 15 | 0 |
| 1989 | 25 | 0 |
| 1990 | 28 | 0 |
| 1991 | 24 | 0 |
| 1992 | 25 | 0 |
| 1993 | 24 | 0 |
| 1994 | 23 | 0 |
| 1995 | 19 | 0 |
| 1996 | 16 | 0 |
| 1997 | 12 | 0 |
| 1998 | 13 | 0 |
| 1999 | 23 | 0 |
| 2000 | 18 | 0 |
| 2001 | 20 | 10 |
| 2002 | 23 | 30 |
| 2003 | 24 | 37 |
| 2004 | 19 | 36 |
| 2005 | 13 | 43 |
| 2006 | 11 | 37 |
| 2007 | 10 | 49 |
| 2008 | 19 | 40 |
| 2009 | 20 | 48 |
| 2010 | 34 | 74 |
| 2011 | 17 | 62 |
| 2012 | 28 | 71 |
| 2013 | 51 | 99 |
| 2014 | 59 | 127 |
| 2015 | 83 | 156 |
| 2016 | 84 | 148 |
| 2017 | 102 | 198 |
| 2018 | 111 | 186 |
| 2019 | 125 | 200 |
| 2020 | 144 | 237 |
| 2021 | 152 | 220 |
| 2022 | 129 | 226 |
| 2023 | 119 | 176 |
| 2024 | 157 | 201 |
| 2025 | 112 | 148 |
| 2026 | 66 | 130 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Biodegradable compositions and articles made from cellulose acetate29 Sep 2026US 12,747,333 B2Eastman Chemical Company
- Ultrafine surface-treated fillers for thin breathable films22 Sep 2026US 12,742,058 B2Omya International AG
- Polymer compositions and coatings22 Sep 2026US 12,742,090 B2The Penn State Research Foundation
- Printing sheet and method for producing printing sheet15 Sep 2026US 12,735,601 B2Tbm Co., Ltd.
- Diaphragm for miniature sound-generating device, and miniature sound-generating device25 Aug 2026US 12,720,262 B2Goertek Inc.
- Foamable Polyurethane Composition Comprising a Fatty Amide8 Oct 2026US 2026/0308307 A1Henkel AG & Co. KGaA
- Curable polysiloxane composition with high thermal insulation performance at high temperature8 Oct 2026US 2026/0308328 A1Dow Global Technologies LLC
- Composition for Use in the Sulphur Based Vulcanization of Rubber8 Oct 2026US 2026/0308354 A1Rubber Nano Products (Proprietary) Limited
- Additive composition and polymer composition containing the same8 Oct 2026US 2026/0308355 A1Milliken & Company
- Method for making a molded article8 Oct 2026US 2026/0308362 A1Milliken & Company
Most cited
By later US patents
- Pelletization of metal soap powders514US 5,997,768 ACiba Specialty Chemicals Corporation · 1999
- Water soluble rapid prototyping support and mold material219US 6,228,923 B1Stratasys, Inc. · 2001
- Compositions containing basic metal salts and/or non-Newtonian colloidal disperse systems and vinyl aromatic containing polymers113US 4,728,578 AThe Lubrizol Corporation · 1988
- High speed method of making microporous film products96US 6,013,151 AClopay Plastic Products Company, Inc. · 2000
- Thermoplastic olefin building materials91US 9,359,014 B1Building Materials Investment Corporation · 2016