C01B 32/184
Preparation
C01B32/184 (Preparation) appears on 1,565 US grants and 2,299 published applications in this corpus.
Search patents in C01B- Granted patents
- 1,565
- Published applications
- 2,299
- Assignees
- 930
- Inventors
- 4,142
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 6 |
| 2009 | 0 | 28 |
| 2010 | 7 | 30 |
| 2011 | 14 | 66 |
| 2012 | 25 | 95 |
| 2013 | 32 | 152 |
| 2014 | 79 | 155 |
| 2015 | 97 | 183 |
| 2016 | 124 | 147 |
| 2017 | 131 | 183 |
| 2018 | 135 | 162 |
| 2019 | 124 | 206 |
| 2020 | 147 | 153 |
| 2021 | 125 | 159 |
| 2022 | 121 | 147 |
| 2023 | 122 | 142 |
| 2024 | 124 | 124 |
| 2025 | 104 | 98 |
| 2026 | 52 | 59 |
By publication year. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Production of graphene directly from biomass precursor22 Sep 2026US 12,741,873 B2Global Graphene Group, Inc.
- Highly dispersible graphene material15 Sep 2026US 12,735,321 B2Yazaki Corporation
- Device and process for mass production of particulate materials8 Sep 2026US 12,728,399 B2Kansas State University Research Foundation
- Transparent substrates comprising three-dimensional porous conductive graphene films and methods for making the same8 Sep 2026US 12,729,153 B2Corning Incorporated
- Barrier-coated cellulose-based substrate, laminated packaging material and packaging container comprising the cellulose-based substrate25 Aug 2026US 12,715,203 B2Tetra Laval Holdings & Finance S. A.
- Porous carbon material, manufacturing method of the same, and energy storage device with the same24 Sep 2026US 2026/0285687 A13Dc Inc.
- Direct Laser Processing and Functionalizing Polymer Composites for an On-Demand, Programmable, Recyclable Device Platform24 Sep 2026US 2026/0286079 A1The Penn State Research Foundation
- Formation of graphene films from solid biomass-derived carbon sources by chemical vapor deposition17 Sep 2026US 2026/0274674 A1City University of Hong Kong
- Graphene and methods of making graphene17 Sep 2026US 2026/0274675 A1
- Pyrolysis and plasma decomposition method for producing carbon nanomaterial17 Sep 2026US 2026/0275198 A1Microwave Solutions GmbH
Most cited
By later US patents
- Composite reinforcing material and molding material117US 10,421,863 B2Graphene Platform Corporation · 2019
- Composite reinforcing material and method of producing a composite reinforcing material117US 9,862,833 B2Graphene Platform Corporation · 2018
- Composite reinforcing material and molding material117US 9,862,834 B2Graphene Platform Corporation · 2018
- Method for producing graphene103US 9,822,009 B2Tokyo Electron Limited · 2017
- Thermally exfoliated graphite oxide96US 7,658,901 B2The Trustees of Princeton University · 2010