H05H 1/481
Hollow cathodes
Official title: {Hollow cathodes}
H05H1/481 (Hollow cathodes) appears on 19 US grants and 21 published applications in this corpus.
Search patents in H05H- Granted patents
- 19
- Published applications
- 21
- Assignees
- 23
- Inventors
- 81
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 1 | 2 |
| 2003 | 0 | 0 |
| 2004 | 2 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 2 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 4 |
| 2022 | 2 | 0 |
| 2023 | 4 | 3 |
| 2024 | 2 | 2 |
| 2025 | 0 | 2 |
| 2026 | 3 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Silicon oxide coated polymer films and low pressure PECVD methods for producing the same23 Jun 2026US 12,662,735 B2Agc Glass Europe
- Plasma generating apparatus31 Mar 2026US 12,592,365 B2
- Hollow cathode system for generating a plasma and method for operating such a hollow cathode system17 Mar 2026US 12,580,161 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Annular hollow cathode19 Mar 2024US 11,937,361 B1The Government of the United States of America, as represented by the Secretary of the Navy
- Discharge device and hair care device6 Feb 2024US 11,889,907 B2Panasonic Intellectual Property Management Co., Ltd.
- Decoratively coated polymer substrates and process for obtaining the same12 Feb 2026US 2026/0043140 A1Agc Glass Europe
- Plasma generation system and method with magnetic field stabilization27 Nov 2025US 2025/0365844 A1Fuse Energy Technologies Corp.
- Nano-catalysts synthesis method6 Mar 2025US 2025/0073693 A1National Taiwan University of Science and Technology
- Method of producing a water repellent coating onto textile substrates using a plasma generated by hollow cathodes22 Aug 2024US 2024/0279811 A1Agc Glass Europe
- Hollow cathode system for generating a plasma and method for operating such a hollow cathode system22 Feb 2024US 2024/0062995 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
Most cited
By later US patents
- Direct current high-pressure glow discharges43US 6,433,480 B1Old Dominion University · 2002
- Apparatus for making a novel, highly efficient, nonpollutant, oxygen rich and cost competitive combustible gas and associated method12US 6,673,322 B2Hadronic Press, Inc. · 2004
- Method and apparatus for providing flow-stabilized microdischarges in metal capillaries11US 6,700,329 B2California Institute of Technology · 2004
- Apparatus for generating a hollow cathode arc discharge plasma6US 9,443,703 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. · 2016
- Simplified formation process of a low work function insert2US 10,002,738 B1Colorado State University Research Foundation · 2018