H01J 2201/30434
Nanotubes
H01J2201/30434 (Nanotubes) appears on 29 US grants and 36 published applications in this corpus.
Search patents in H01J- Granted patents
- 29
- Published applications
- 36
- Assignees
- 34
- Inventors
- 109
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2005 | 2 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 2 | 5 |
| 2009 | 0 | 3 |
| 2010 | 3 | 5 |
| 2011 | 2 | 1 |
| 2012 | 0 | 0 |
| 2013 | 2 | 5 |
| 2014 | 3 | 4 |
| 2015 | 4 | 1 |
| 2016 | 2 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 3 |
| 2019 | 0 | 1 |
| 2020 | 3 | 1 |
| 2021 | 2 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
| 2026 | 1 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Emitter and field emission assembly including the same7 Jul 2026US 12,676,276 B2AweXome Ray, Inc.
- Emitter, electron gun using same, and electronic device8 Aug 2023US 11,721,516 B2National Institute for Materials Science
- Field emission apparatus with superior structural stability and X-ray tube comprising the same7 Dec 2021US 11,195,684 B2AweXome Ray, Inc.
- Patterned focal plane arrays of carbon nanotube thin film bolometers with high temperature coefficient of resistance and improved detectivity for infrared imaging2 Feb 2021US 10,908,025 B2Carbon Solutions, Inc.
- Field emission cathode structure for a field emission arrangement4 Aug 2020US 10,734,180 B2Lightlab Sweden AB
- X-ray devices with nanotube emitters and methods of forming8 Oct 2026US 2026/0311951 A1Varex Imaging Corporation
- Cathodes having carbon nanotube (cnt) fibers wound onto graphite substrates or frameworks11 Dec 2025US 2025/0379018 A1Government of the United States as Represented by the Secretary of the Air Force
- Emitter and field emission assembly including the same10 Jul 2025US 2025/0226170 A1AweXome Ray, Inc.
- Emitter, Electron Gun Using Same, and Electronic Device28 Apr 2022US 2022/0130634 A1National Institute for Materials Science
- Field emission apparatus with superior structural stability and x-ray tube comprising the same28 Jan 2021US 2021/0027969 A1aweXomeRay Co., Ltd.
Most cited
By later US patents
- Carbon nanotube electron ionization sources15US 6,885,010 B1Thermo Electron Corporation · 2005
- Electron source11US 6,958,475 B12005
- Ionization vacuum gauge9US 7,049,823 B2Varian, Inc. · 2006
- Photon enhanced thermionic emission7US 8,853,531 B2The Board of Trustees of the Leland Stanford Junior University · 2014
- Method of fabricating carbide and nitride nano electron emitters6US 7,465,210 B2Samsung Electronics Co., Ltd. · 2008