C01B 2202/30
Purity
C01B2202/30 (Purity) appears on 78 US grants and 117 published applications in this corpus.
Search patents in C01B- Granted patents
- 78
- Published applications
- 117
- Assignees
- 81
- Inventors
- 305
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 2 | 6 |
| 2006 | 0 | 3 |
| 2007 | 1 | 5 |
| 2008 | 0 | 5 |
| 2009 | 6 | 7 |
| 2010 | 7 | 4 |
| 2011 | 5 | 3 |
| 2012 | 5 | 3 |
| 2013 | 3 | 4 |
| 2014 | 1 | 4 |
| 2015 | 2 | 4 |
| 2016 | 1 | 0 |
| 2017 | 0 | 2 |
| 2018 | 4 | 3 |
| 2019 | 4 | 8 |
| 2020 | 5 | 4 |
| 2021 | 2 | 9 |
| 2022 | 7 | 5 |
| 2023 | 4 | 11 |
| 2024 | 9 | 9 |
| 2025 | 8 | 11 |
| 2026 | 1 | 5 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Method for producing anode paste for lithium-ion battery24 Feb 2026US 12,562,371 B2MCD Technologies S.A R. L.
- Iron removal from carbon nanotubes and metal catalyst recycle25 Nov 2025US 12,479,729 B2Nanocomp Technologies, Inc.
- Boron-doped carbon nanotubes synthesized by arc discharge and method of manufacturing the same7 Oct 2025US 12,434,972 B2Industry-Academia Cooperation Group of Sejong University
- Electrolysis methods that utilize carbon dioxide and a non-iron additive for making desired nanocarbon allotropes3 Jun 2025US 12,320,016 B2C2Cnt LLC
- Electrolysis methods that utilize carbon dioxide and a non-iron additive for making desired nanocarbon allotropes3 Jun 2025US 12,320,017 B2C2Cnt LLC
- Carbon nanotubes and method for purifying same, carbon nanotube dispersion, binder composition, electrode composition, and secondary cell16 Jul 2026US 2026/0200739 A1artience Co., Ltd.
- Carbon nanotube dispersion liquid, method for preparing same, electrode slurry composition comprising same, electrode comprising same, and lithium secondary battery comprising same18 Jun 2026US 2026/0167496 A1BETTERIAL Co., Ltd.
- Improved lithium ion battery using high surface area nanotubes4 Jun 2026US 2026/0152399 A1Molecular Rebar Design, LLC
- Catalyst, Catalyst Precursor, Production Process, and Resulting High Purity and Controlled Morphology Carbon Nanotubes26 Feb 2026US 2026/0054256 A1Chasm Advanced Materials, Inc.
- Catalyst, Catalyst Precursor, Production Process, and Resulting High Purity and Controlled Morphology Carbon Nanotubes26 Feb 2026US 2026/0054988 A1Chasm Advanced Materials, Inc.
Most cited
By later US patents
- Mass synthesis method of high purity carbon nanotubes vertically aligned over large-size substrate using thermal chemical vapor deposition186US 6,350,488 B1Iljin Nanotech Co., Ltd. · 2002
- Single-walled carbon nanotube and aligned single-walled carbon nanotube bulk structure, and their production process, production apparatus and application use81US 7,854,991 B2National Institute of Advanced Industrial Science and Technology · 2010
- Method for synthesis of carbon nanotubes45US 7,622,059 B2Arkema France · 2009
- Method for preparing single walled carbon nanotubes30US 7,862,795 B2Hyperion Catalysis International, Inc. · 2011
- Single-walled carbon nanotube and aligned single-walled carbon nanotube bulk structure, and their production process, production apparatus and application use29US 8,114,518 B2National Institute of Advanced Industrial Science and Technology · 2012